My HT is no slouch and my AVR even supports Atmos, I agree its nice but I do feel its way overrated. My HT is running with Ascend Acoustic Sierras using their RAAL ribbon tweeters all around me, Rythmik 15' subs and Anthem MRX, Ive heard Atmos in high end sets up, as well at the movies and its great but I just don't feel its worth all the speaker placement for my/others living room. HT is a hobby of mine and love a nice HT setup and fully appreciate Atmos but many in the HT world talk it up as something more than it is, imo a very nice and properly tuned up 5.1/5.2/7.1/7.2 setup can hold its own to Atmos.
Nice setup. I'm sure it sounds excellent. Highly regarded speakers, subs, and avr with amongst the best room correction. Mine isn't as high end but holds it's own. Have a mostly Klipsch RP setup in a 5.2.4 config. Dual SVS PC12+ subs. Denon x4300h avr. For atmos using Klipsch's RP-140sa implemented as an upfiring pair in front but as rear height pair in the back. That's what my living room config allowed. Works very well as I have fairly ideal ceiling height and type for upfiring to work. In my reading over on AVS forums it seems most are pretty realistic about atmos and don't overhype it. It's not a whole new experience but clearly adds a new dimension to surround sound.