I have a XBR43x800D. I know it does HDR. But how low quality is it?
It is 10 bit HDR but the brightness does not go above 400 nits which means it is middle end and not HDR10 or Dolby Vision level. It is still miles better than the HDR found in LG and Samsung lower end models and many miles ahead of no HDR at all.
I have downloaded some HDR footage on a computer plus I have been watching HDR netflix with same television. Looks great. Obviously it does not match the HDR of the KS8000 by Samsung in terms of brightness to get all the details, but you spent far far less. In a darker room, you would see pretty solid HDR quality as well. Be happy with the purchase. The other features like Android 6.0 tv and playstation now make it more user friendly than Samsung tizen based televisions.