until last year, all we used was Luxul. we had all possible problems you can call, and only one thing fixed our problems. Not tech support, not firmware updates: Moving to Ubiquiti / Unifi.
Unifi has absolutely no support. their chat support SUCKS. all they do is send you a youtube link for a video that some guy made about how to configure their stuff. but once you get the ABCs and setup you network, forget it. it will work forever