I love how easy it was to get up an running with nirmtas, since they only provide ready made templates one just needs to fill in his environment details like IP address etc. The performance of this solution has been excellent across all our instances ranging from 15K nodes upwards which makes life much easier when dealing with kubernets. Overall we have no issues regarding their product so far but i would say if you are looking at other solutions go through them first because its hard to find any downside in using these products. We were solving multiple problems related to day2 ops and security concerns by having everything centralized into 1 spot -which saves time and resources as well.