Pros: Functional GUI, YPAO, Zones
Cons: No Airplay
YPAO is very useful. I switch between YPAO Flat equalization and manual. This unit has plenty of power. The On Screen menu is easy enough to use. I do not like that you can only use analog sources for Zones 2 and 3. Meaning to get audio from the Apple TV to Zone 2, I have to use Party Mode.
The unit does generate a lot of heat. I would recommend using a blower fan like this to keep it cool: