Here's another thought. How about starting a new thread.
List of devices with issues using Libreelec
It would update previous working Chinese Branded Boxes using Libreelec that
have changed Hardware or Firmware causing issues with Libreelec.
A member posting on this thread would make this a more up to date list on any box that changes compatability.
If you think it's a good idea then go for it. I don't have any particular issues to talk about so it would be a bit odd for me to start it. And obviously if there are 'good' boxes out there (which I'd say there are) they'd never get a mention in that thread. So while such a thread would certainly be useful, it baffles me that you - and not just you - think me giving an overall impression of the boxes I use would be worthless. Because I'd certainly be interested in others' experiences next time around.