Just want to say the upmixer for Atmos is pretty good at what it does, even for quality stereo sound. I never liked "movie mode" as it usually just makes things sound hollowed out but Gene at Audioholics had nothing but good stuff to say about it so now I use it almost all the time except for vocal music cause I got a cheap receiver without the extra tweaking capabilities. (Don't watch a lot of TV, just wanted something that is at least current).
Now I gotta wait for the next AppleTV so I can get a real Atmos source. Our BD player is a first gen and probably won't do Atmos correctly.