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ClearScale Windows Server 2025 vs Upbound Crossplane comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

ClearScale Windows Server 2025
Ranking in AWS Marketplace
450th
Average Rating
10.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Upbound Crossplane
Ranking in AWS Marketplace
6th
Average Rating
8.6
Number of Reviews
8
Ranking in other categories
No ranking in other categories
 

Featured Reviews

reviewer2858658 - PeerSpot reviewer
Works at a tech vendor with 11-50 employees
Automated hardening has standardized our servers and reduces effort for secure Windows workloads
The first-boot time is longer than a stock Windows AMI. Sysprep and the initial hardening pass add a noticeable delay before the instance is reachable, which is something to account for if you autoscale and need nodes ready quickly. The hardened defaults also occasionally trip up common installers and agents. A few of our deployment and monitoring tools assumed services or policies that the image had locked down, so we had to add exceptions. A short compatibility checklist of what the hardening changes from a default Windows install would have saved us that debugging. I would also like the option of a CIS Level 2 build for our more sensitive workloads since the image currently only ships a Level 1 baseline. Thanks.
Diego Paradeda - PeerSpot reviewer
Senior Software Engineer at Philips
Automated infrastructure deployment has reduced our backend release time from days to hours
I found an issue with features that was difficult for me when we needed to retrieve some tags or IDs of a resource that we deployed using Upbound Crossplane, for example, the RDS. We encountered a problem where we needed to use the ID of the RDS in another document that we have, making it difficult to return this information using Upbound Crossplane deployment. I believe Upbound Crossplane could be improved by possibly having a feature that can return tags, IDs, or resources that were deployed inside AWS, such as needing to return the ID of the VPC that we create when using Upbound Crossplane. I think the current state of Upbound Crossplane is already good enough.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Because the image arrives CIS Level 1 hardened with the AWS tooling already in place, our servers come up patched, locked down, and ready to join the domain without a separate build out pass."
"Windows Server 2025 is a strong fit for enterprise environments heavily reliant on Microsoft technologies."
"The best features Upbound Crossplane offers are infrastructure as Kubernetes APIs and self-service infrastructure, where developers can provision resources without cloud credentials, and its strong multi-cloud support that makes it useful in managing AWS, Azure, and GCP from a single control plane with valuable GitOps integration."
"Upbound Crossplane impacts my organization positively because, from our perspective, we need to rely on fewer resources."
"We went from having a 28-member troubleshooting team down to four to five members of the platform engineering team."
"Upbound Crossplane has impacted our organization positively as it has been a transformative experience because the main thing about transformation is how we were able to make our lives easier as engineers."
"The time required to complete an environment setup was reduced from about one or two weeks to forty to fifty minutes."
"Before choosing Upbound Crossplane, I evaluated various options, but I only found Upbound Crossplane to be the best choice."
"Upbound Crossplane has positively impacted our organization by allowing us to reduce our deployment time from three days to three hours for the entire back-end and entire infrastructure."
"When I provisioned PostgreSQL and S3 buckets through Crossplane, I noticed improvements in deployment speed, reliability, and team collaboration."
 

Cons

"Initial configuration complexity can still be high for teams without prior Windows Server expertise."
"The hardened defaults also occasionally trip up common installers and agents: a few of our deployment and monitoring tools assumed services or policies that the image had locked down, so we had to add exceptions."
"However, one area of improvement is the learning curve, as Upbound Crossplane concepts such as providers, compositions, and claims can be difficult for beginners."
"The documentation needs to be updated regarding the needed improvements for Upbound Crossplane. There is very little documentation online, and there are no tutorials for Upbound Crossplane."
"I found an issue with features that was difficult for me when we needed to retrieve some tags or IDs of a resource that we deployed using Upbound Crossplane, for example, the RDS."
"One area where Upbound Crossplane can be improved is with API rate limiting."
"Regarding Upbound Crossplane's capabilities, I feel the governance and security is something which is lacking."
"Upbound Crossplane was not stable in my experience."
"Upbound Crossplane can be improved if they can add more AI agentic workflows."
"Regarding Upbound Crossplane, I see room for enhancement in synchronizing the state file of Crossplane with Terraform, as 90% of organizations have generally implemented Terraform and have their own specific, environment-specific Terraform state files."
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Top Industries

By visitors reading reviews
No data available
Construction Company
30%
Manufacturing Company
11%
Comms Service Provider
10%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise2
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for ClearScale Windows Server 2025?
The software charge sits on top of the underlying Windows EC2 cost, which is already higher than Linux, so model both together before you commit to a large fleet. The hourly model suited our autosc...
What needs improvement with ClearScale Windows Server 2025?
The first-boot time is longer than a stock Windows AMI. Sysprep and the initial hardening pass add a noticeable delay before the instance is reachable, which is something to account for if you auto...
What is your primary use case for ClearScale Windows Server 2025?
We use ClearScale Windows Server 2025 as the base image for our .NET and IIS application servers on EC2. These instances host internal line of business web applications and Windows services, and se...
What is your experience regarding pricing and costs for Upbound Crossplane?
I find the pricing, setup cost, and licensing of Upbound Crossplane very suitable for research and development.
What needs improvement with Upbound Crossplane?
One area where Upbound Crossplane can be improved is with API rate limiting. For instance, if we frequently send some data to a specific API to poll the latest status of machines, it can result in ...
What is your primary use case for Upbound Crossplane?
Upbound Crossplane connects the cloud APIs on cloud providers like GCP, AWS, and Azure. We need to maintain the network resources and the VM containers, and the VM instance that Upbound Crossplane ...
 

Overview

Find out what your peers are saying about ClearScale Windows Server 2025 vs. Upbound Crossplane and other solutions. Updated: July 2026.
909,948 professionals have used our research since 2012.