Mike Mangini approached the drumming on this album like a musician should. He knew his role at every given point. He tastefully fullfilled his primary role as drummer by having impeccable timing and supporting the melodic voices, taking his own moments only when musically appropriate. Notes for notes sake doesn't equal good drumming. As a drummer/percussionist myself, I loved it.
I have to admit, my reaction during my first listen was kind of an unenthusiastic "well this is nice." But the more I listen to it, the more and more I really like it. The thing I love most about the album in general is how thoughtfully the songs are written and orchestrated. The phrases are allowed breathe and progress naturally. The development isn't rushed. They are very carefully paced and the resolutions/payoffs are incredible. The orchestrations aren't over done, you can hear every texture and timbre very clearly. If you're looking for instant gratification, this album might not be for you, but if you're patient and let yourself become absorbed in the music, you're in for an aesthetic treat!