The idea of using Slack was to keep non-business related talks from business talks. In Slack, you have different channels where you can set topics, therefore people will not divagate on a specific subject.
Sales Developer at Omnia Salud
You have different channels where you can set topics
Pros and Cons
- "It has definitively made an improvement on our productivity. Information does not got lost in hundreds of less important messages."
- "Its integration with different apps is a great feature."
- "Notifications are not as good as they could be (especially for mobile)."
- "Slack could add additional and better integrations."
What is our primary use case?
How has it helped my organization?
It has definitively made an improvement on our productivity. Information does not got lost in hundreds of less important messages. If you want something about a specific topic, you just go to that channel, scroll a bit, and eventually you will find it.
What is most valuable?
Its integration with different apps is a great feature. Also, for a deconstructed environment, bots, GIFs and customizable emojis are a great fun for the IT team!
What needs improvement?
Slack could add additional and better integrations. There is a lot of room for improvement here.
Also, notifications are not as good as they could be (especially for mobile).
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Slack
May 2025

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For how long have I used the solution?
One to three years.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
SRO Development Manager at a computer software company with 201-500 employees
Channels enable us to manage by locations and subjects, works well on mobile
How has it helped my organization?
We are able to manage various channels by different locations and subjects, and it integrates with Google Drive.
What is most valuable?
- Channels
- File sharing
- Works well on mobile
What needs improvement?
Notifications.
For how long have I used the solution?
Less than one year.
What do I think about the stability of the solution?
No stability issues, works perfectly.
What do I think about the scalability of the solution?
I haven't notice any scalability issues.
How are customer service and technical support?
Tried to find information about advance settings for notifications, but did not find what I was looking for.
Which solution did I use previously and why did I switch?
We used Skype. We switched because our parent company uses Slack, and we had to adjust.
How was the initial setup?
Pretty straightforward.
What's my experience with pricing, setup cost, and licensing?
I am not dealing with pricing and licensing, so I cannot comment.
What other advice do I have?
Initially I thought it cannot be better than Skype, but after working with it for a while I can definitely confirm it is a great tool for collaboration.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
Slack
May 2025

Learn what your peers think about Slack. Get advice and tips from experienced pros sharing their opinions. Updated: May 2025.
857,028 professionals have used our research since 2012.
Head of Operations at a tech services company with 1,001-5,000 employees
A very robust, flexible platform with a nice web interface
How has it helped my organization?
Slack is a very robust, flexible platform, which allows for a lot more, not just chat.
What needs improvement?
Some features and plugins can be pretty obscure or difficult to deploy.
For how long have I used the solution?
Two years.
What was my experience with deployment of the solution?
It came pre-installed but also has a nice web interface. We did have difficulty deploying some features and plugins.
What do I think about the stability of the solution?
We have had no issues with stability.
What do I think about the scalability of the solution?
We have had no issues with scalability.
How was the initial setup?
It came pre-installed, so we did not need to do any setup on our part.
What about the implementation team?
Neither, as it came pre-installed.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Desktop Support Analyst at a non-tech company with 51-200 employees
I think Slack is a very creative application to help unify communication across all team sizes.
What is most valuable?
The channels feature is the selling point for me. Being able to create a conversation for both public and private purposes through some channels is an absolute plus.
How has it helped my organization?
I was the president of a college event planning organization. Being able to have a conversation with my executives separately from the organization members was very convenient.
With multiple events happening and multiple conversations going on, I was able to divide the conversations into their respective groups and create channels for focus groups. This increased our productivity and efficiency by more than 80%.
What needs improvement?
Archiving for direct messages made tracking back conversations very difficult once the group started to grow large.
From what I noticed while using Slack, once a channel starts growing in
its number of messages, older messages are archived. This made it more
difficult to reference older messages. To be able to search for a particular message, you'll need to remember the exact phrases or the sender.
I think it would be much easier to "Scroll back" into older messages even
though it archived.
For how long have I used the solution?
I have been using this solution for three years.
What do I think about the stability of the solution?
Stability was not an issue at any point. My team and I used it across multiple devices and platforms and the flow was seamless.
What do I think about the scalability of the solution?
We had no issues with scalability. I was able to create more channels as the team grew bigger.
How are customer service and technical support?
I never had to contact the support team.
Which solution did I use previously and why did I switch?
We were initially using email and IM chat to communicate. We switched because the conversations became unorganized and inefficient when conversations started overlapping.
How was the initial setup?
The setup was very straightforward. Once I sent an invite to my new team members, all they had to do was create a password and sign in. Their channels were pre-assigned and they had no issues joining the conversation. It was also easy to navigate.
What about the implementation team?
Through an in-house one. Level of expertise was as great as it could get.
What's my experience with pricing, setup cost, and licensing?
I had a relatively small team, so I didn’t have to worry about pricing and licensing. I only encountered pricing third-party apps and bots to help facilitate automations.
Which other solutions did I evaluate?
I did not evaluate any other options as I did not have a reason to. Eventually I heard of Ryver. I was not compelled to switch though.
What other advice do I have?
I think Slack is a very creative application to help unify communication across all team sizes. I will definitely suggest this as my first choice.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
CEO at a tech services company with 1-10 employees
The most valuable features are the ability to communicate instantly and create channels. I want to notify users of messages that need immediate attention.
What is most valuable?
The most valuable features are the ability to communicate instantly and create channels. I can create a channel called #breakfastdiscussion, invite three people on my team, and we can chat over breakfast. I can also make a channel called #teamtalk and all the team can be invited. This is a great feature.
How has it helped my organization?
We can group conversations around different issues. The issues are entirely created by us, in-house. It works well for a small team with opt-in members.
What needs improvement?
I would like to be able to notify users that they have messages that need their immediate attention. If Slack picked up more features of Asana, such as ticketing and calendars and assignments, I would give it a rating of 5/5.
For how long have I used the solution?
I have been using Slack for a year and a half.
What do I think about the stability of the solution?
We have not had any stability issues.
What do I think about the scalability of the solution?
We have not had scalability issues.
How are customer service and technical support?
Technical support is excellent.
Which solution did I use previously and why did I switch?
We did not have any previous solutions.
What's my experience with pricing, setup cost, and licensing?
It is free for us.
What other advice do I have?
It is essential for small team communication.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
CTO at a tech services company with 11-50 employees
The valuable features are group chat, sharing of attachments, and pinning items.
What is most valuable?
The valuable features are mainly group chat, calling, easy sharing of attachments, and pinning items. These might be basic features, but they make life much easier.
How has it helped my organization?
Communication with clients became easy. Different groups for different teams helped a lot in the planning and execution. Everyone stays updated with the progress without any ambiguity.
What needs improvement?
I believe they can improve upon ‘calling’, which was introduced recently.
For how long have I used the solution?
I have been using this solution for more than a year.
What do I think about the stability of the solution?
There were not many issues with stability, but whenever they introduced a new update, the loading time went up.
What do I think about the scalability of the solution?
There were no issues with scalability.
How are customer service and technical support?
Technical support is good. They are pretty quick with responses and provide excellent support.
Which solution did I use previously and why did I switch?
We were using Skype. We switched mainly because maintaining different client organizations is pretty easy on Slack.
Other reasons include the powerful search feature, rich messaging, a more customizable interface, chat functionality, and email notifications.
How was the initial setup?
The setup was pretty simple and quick. The sign up form was easy and the complete onboarding process was quite smooth.
What's my experience with pricing, setup cost, and licensing?
Slack is actually rewriting the rules on SaaS pricing. It’s free for basic use and offers some awesome features at no cost at all. I will highly recommend Slack to other companies.
Which other solutions did I evaluate?
We didn’t look at other alternatives.
What other advice do I have?
I am not sure if someone is looking to implement a product like Slack, but if someone is really looking for it, then it’s not that easy.
Slack took many months/years to get to this stage. More importantly, they focused on small and medium sized enterprises, which was their biggest market.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Co-Founder- Business at a tech services company with 1-10 employees
Allows us to monitor and interact with our systems and infrastructures.
What is most valuable?
I appreciate the rich integrations that allow us to monitor and interact with a number of our systems and infrastructures.
How has it helped my organization?
We are given an overview of our system status. We are able to respond quickly to infrastructure events, marketing events, customer service events, etc.
What needs improvement?
Threaded discussion needs improving.
For how long have I used the solution?
I have used the product for two years.
What do I think about the stability of the solution?
We had no stability issues.
What do I think about the scalability of the solution?
We had no scalability issues.
How is customer service and technical support?
I haven't needed technical support.
How was the initial setup?
The setup was straightforward as the Slackbot walks you through the whole process.
What's my experience with pricing, setup cost, and licensing?
Be sure to delete inactive users.
What other advice do I have?
Take advantage of integrations.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Graphic Design, Marketing, Lead Generation at a financial services firm with 1-10 employees
The most valuable features are creating chats with combinations of people and the remind function.
What is most valuable?
Creating chats with any combination of people and the remind function.
How has it helped my organization?
We've been using it almost from the very start. It has helped us keep communication open between our international offices.
What needs improvement?
There are a lot of features in Slack that I don't use, because I don't know about them. I found the remind feature when I Googled the Pomodoro technique. I found this by chance. It would be helpful if Slackbot gave me some tips on features that I don't currently use.
For how long have I used the solution?
We have been using the solution for more than two years.
What do I think about the stability of the solution?
I did not encounter any issues with stability.
What do I think about the scalability of the solution?
I did not encounter any issues with scalability.
How are customer service and technical support?
I have never needed technical support.
Which solution did I use previously and why did I switch?
I did not use another solution previously.
How was the initial setup?
The setup was straightforward.
What other advice do I have?
It is a great product and the mobile app is a big plus.
Disclosure: My company has a business relationship with this vendor other than being a customer: We are partners.

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Moving to Slack from different communication tool changed our development team productivity 100% for better. And it is not only about specific teams, but it is also just a great way to communicate across all business globally. I personally love all the automation capabilities and integration with other tools, which makes your life easy and keep you up-to-day with all important things which going on.