I dunno. I can't really distinguish Atmos from 7.1, honestly. I may have a keen sense of hearing, but there is only so much extra directionality I can process while I'm also trying to follow what's happening on screen and what the characters are saying and so forth.
And I've heard Atmos cranked up to IMAX levels before. Pacific Rim opening night in Regal RPX/Dolby Atmos was one of the most painful sonic experiences I have ever had to endure. It caused physical discomfort, not just for my ears, but also for my stomach. The ordeal caused me to swear off premium large format; save for seeing Gravity and Interstellar in IMAX, every screening I've been to post-Pacific Rim has been plain ol' 2D with regular 7.1 sound.
So I guess I have no answer for you.