I was running on Ubuntu for a few months now with all my own scripts for monitoring, OC, etc.  Has been very stable for me but I do not have the time to keep up with updating miners and building out the web interface I started.  I decided this weekend to try out HiveOS and extremely happy with it.  Switched my three rigs over in just a couple hours.

First 24 hours it was crashing often on 2 of my rigs with the same overclock settings I used on my Ubuntu setup but I just backed off the settings a bit and been very stable now for a few days.