I was actually referring to headphone use. You should give atmos a try on a mobile device with headphones. It, certainly won't match what a full room setup will do but it makes a hell of a difference.
I agree, it certainly makes a difference. I have played with Atmos on the A7 when it first came out, & I also have it installed on all my Windows machines. Atmos is good, but when compared to DD+ on headphones the overall sound quality drops for sounds that are off-center (unclear, boomy, muddy, etc.), but it's easier to determine where the sounds come from (distinctive localization) which could be useful for games & movies with specific Headsets but not for music with Hi-Res Headphones.
You also have to remember that both Atmos & DD+ use the same base form. DD+ gets you the same surround sound benefits without too much compromise & works well with almost every general headphone profile. Atmos only works best with specific 3D headphone profiles, otherwise you would get the side effects I mentioned earlier.