The only thing I don't like about my 900E is the slow SoC. The panel, processing software, and overall design are beautiful. However, I much prefer my Apple TV, which I can also AirPlay to if I want. My Harmony Elite remote also means just one remote as well, and with the press of a single button it turns on all my equipment and sets it all to the appropriate inputs and settings.
Optical and ARC will only do up to lossy 5.1. Many TVs also come with HDMI ports that have a hodgepodge of capabilities on different ones, so I prefer having one cable to my TV from my receiver and then switching devices with my receiver.