NPM is the best solution when it comes to performance monitoring as for sure no other product can beat in terms of monitoring like Netflow, web filtering, interface, CPU, bandwidth, disk, servers, DB, etc... and many more. Even though it is best but has complications in learning and budget issues.

Ease of implementation and usage we see a lot!

I'd rate this product a 3/5. It does what you need it to but it requires more administration that it should and the performance is poor.

Network Performance Monitor gives us incredible experiences and insights.

It has features for real-time network monitoring, automated network discovery, advanced network alerting, and wireless network monitoring.