Until about 4-5 days ago I didn't know this game existed. I bought it on friday, along with Kingdom Hearts 3d and my goodness this game is a ton of fun. I am thinking very strongly of replaying all the numbered FF games except the MMO's mainly because of this game. The music is obviously great, but the RPG elements are so very well done, and it makes you feel like your actually playing a game, not just hitting a button to a song like Guitar Hero, or Rock Band.
I can't believe this game completely slipped by me.