Firmware needs to grow a lot.
I received mine saturday and hooked it all up and I had zero audio going to my avr, got ahold of support Monday, firmware that I had did not support passthrough. New firmware on monday fixed audio issues. But there is no sort options. When you open up a network folder. The first icon could be zzzzzzz.mkv and the 50th item could bot a.mkv It randomly puts the file list for you to view and I have some items missing in the view also,
As for other things none of my upnp servers show up not sure if this is supported or not have not herd anything, The UI is nice the apps are nice, upscaling is good. getting to the media horrible.