I gave NetData a try and was quite disappointed. The load generated by the agent was too much, and the ability to delete a node was extremely difficult.
Enhance doesn't "dockerize" websites (or other roles) either. Just the primary platform containers. I'll definitely be interested in Prometheus but don't really want to spend time without some feedback, so I'm registering my interest too!
Currently I use an internal server monitoring system that works well for cPanel but not as much with Enhance other then alerting for basic outages. I've been using https://github.com/jesseduffield/lazydocker for docker stats but the difficulty is monitoring non-docker containers.