The build quality is impressive. I had it for 2 weeks, used it for about an hour daily, and set it to only poweroff after a day of inactivity.
Its battery dropped from 100% to 48% over that time. Yes, I was quite positively impressed.
However, their theft of code (which is what you do, if you do not respect the code license, eg, gpl), the fact that even a brand new model tablet was 3+ monthly Android security updates behind, and the pcaps I took showing all the phoning home, including IPs in China...
Well...
As I said, returned. Quite sad, loved the hardware.