The network monitoring feature, especially, stands out to me. We needed a tool that could indicate which devices are up or down, and I believe Nagios Network Analyzer is the best option for that. It provides detailed reports and helps me stay on top of things. Moreover, it has the ability to detect errors before a device goes down, which is simply awesome.

I found that it has a good GUI and user-friendly administration.

We use it for up-and-down monitoring features.

The solution is cost-effective.

Network tracking is the most valuable feature of Network Analyzer.

Our customers like this product due to the fact that it's quite simple and it can be integrated with other solutions that complement and complete each other. Basically, the way I studied Nagios Analyzer was, after I implemented Nagios, the customer could access the features by implementing the other Nagios products. 

The initial setup is easy.

The solution is mostly stable.

It is highly customizable and can be integrated well with third-party software. Because there is no perfect solution for everything that you want to monitor, you have to do some customization. 

The solution offers very good system monitoring. It's easy to manage your network, as well as your hardware and software. It's really useful.

The tool's UI is user-friendly, and pricing is affordable. It is very easy to deploy and learn.