I am surprised at the little review attention this is getting here. Are people perhaps only still receiving their copies?
Anyway, I have atmos (5.1.4), and doing a changeover comparison between atmos and 5.1 on the first song (Bring It On) I agree, the 5.1 bass does feel tougher on the 5.1. The atmos is still great though. I didn't notice a difference so much with Kiss from a Rose. There also seemed to be different treatment for the vocals, and I preferred the atmos (it felt as if there's more separation in the harmonies, perhaps a treatment more possible with atmos?).
The album sounds lovely (and classy) throughout and is of the immersive/atmospheric school of approach with discrete moments now and then, such as in Dreaming in Metaphors. It's not an album I know at all, apart from the single, and I want to hold off rating it until I've had time to properly enjoy both the music and the mix. I feel I will probably land on a nine.