The song's grown on me quite a bit, actually. I heard it in a very good AMV that combined some of the trailer footage. Overall, I don't like Leona Lewis' music, but I can put up with this one I think. Especially if the game takes a bittersweet/sad tone (which it's looking like it might).

Regarding the voice acting, I'm somewhat glad to see Troy Baker penned as Snow's VA (over on IMDB), because he tends to be pretty good with voice acting. Not sure about the others though. I've played some games with REALLY BAD voice acting and seen them through...I wish they'd give the option to switch between Japanese and English acting though, just in case the English really is awful.