The Unifi product is getting better, but I sometimes wish I had gone with their EdgeRouter line instead of Unifi for routing and switching.
I would say it’s certainly good enough for home, but I’d hesitate to use it in a lab environment where configs might get a little more unique.
It's certainly not rocket science, but I don't know too many junior sysadmins who could do it without hours of research and pain. Whereas making a change on an EdgeRouter is more legacy - find, apply, save. Done.
(I have both and my EdgeRouter X feels definitely in “maintenance mode”).
Software wise, the UniFi line does seem a little more actively developed, but new EdgeRouter products are and have been coming out (like the 10Gbit EdgeRouter Infinity a little while ago, and the new EdgeRouter 4 etc.). I think a lot of the software slowness might have been that some of the devs on the EdgeMax team left (judging by the staff posting on the forums), so it's probably been taking a while for the new devs to get up to speed.