Yeah, the soundtrack is good, but a blu ray with strategies is... I mean, Blazblue is not Command and Conquer, hehe. Too bad the rumor that it was an ova didn't turn out to be true.
There's also the artbook for the ones who preordered in gamestop. Unfortunately, i'm not one of these, cause i really wanted... It shouldn't be exclusive for gamestop.
About the achievements, for now, i just want to play the game, but i'll try to get all of them with the time. At least, for now, they sound fairly easy, but i heard some secret ones are crazy, like finishing the game in the hardest without getting hit by the final boss or something like that.