It is always improving. Take a look at their release notes and you will see the pace. 

I like the philosophy of the developers, which is to listen to customer feedback and develop whichever features they think are desired most. Since they are a small company, they can do this with quite an impressive turnaround time. There have been multiple features that we have requested, and received immediate feedback on, in the form of a feature addition in the next release. This is beneficial but has drawbacks as well. Sometimes, the new code has not been tested thoroughly enough and thus does not work as expected right away, but these are quickly resolved if you pipe up about them.

Enigma has lots of features out of the box. You don’t have to be super technical to get it going, though every bit of general understanding you can get about Linux, monitoring, and databases will help. Again, as with any monitoring system, if you are going to be polling more than a few thousand metrics, make sure you have a disk system that can handle the load (all-flash would be best). I hope this info helps you make an objective decision.