I tried the game and it's fun, the only thing I didn't like is that even in hard the beats are too slow and easy, also, the free mode is a joke, all you have to do is slide and tap and you'll ace the song, coreography mode is the only good one.
The music is good for the most part but songs that SHOULD be great suffer because the cover is pretty lame.
The minigames are great, overall I thought the game was good but it has too many shortcomings to really be called great and addictive, it's a nice game if you have already played through Ouendan and EBA so if you haven't played those, play them and don't bother with Boogie just yet.