I foresee complaints about Youtube HQ and HW decoding.
This is what you'll lose by reverting to 16/11:
video playback improvents by Ganster (HTML5 streaming video, divx harware decoding, etc)
fixed hardware video decoding (e.g. YouTube HQ, thanks to Ganster and everyone involved)
Apply Youtube HQ patch from KonstaT (search this thread for the patch) over 16.11 ROM. ROM is very stable and Youtube HQ works. May be S/W encoding, but it works without any issues.