i think this is the best thing to happen for movement and exercise since the Zumba movement, no pun intended...lol
it is terribly fun, very active .... the ONLY thing is it could stand better music, the music gives me a headache, that is why the four stars.... you have to purchase other music, and after over $650 entry fee with accessories. i would think a few "alternative" music packages other than electronica based would be nice, after all the music has to come through the game to get "Beat Points' so the option of playing your own tunes at home effects your score:(.
it really is fun though.