Sorry, I do not.
The only experience I have with Ugoos' ATV was trying the AM2(S905) ATV firmware on an S95(Meta). Ugoos' AM2 and the S95 Telos boards are all but identical(no SATA port on AM2). The Meta uses a different WiFi module, so I only played with it for a little bit and then flashed other F/W. I do not have a Netflix or Hulu account, so could not test for HD. My lack of familiarity with ATV, does not make for a valid evaluation of it.
This Freaktab article may be of interest to you. It is for an S912, but may work on others, including RKs.
Wish I could be more helpful.