The one AMD x86 box I got from them occasionally randomly segfaulted and would blackscreen and hang if left on on after anywhere from 45 minutes to a few hours. I read that it might be a driver issue in proxmox debian and tried running windows on it and had the same issue. Oddly memtest passed on it while running repeatedly for 3 days strait before shutting down unexpectedly.
Its kinda made me hesitant to trust any of these cheap minipcs ever again.