As I expected, the story is pretty guessable and obvious... It would be too harsh to expect a solid storyline from a "dance-movie" like Step Up. And of course, there was a lot of hip-hop and cool dance. The first dance scene at the very starting was impressive and kind of unique (there were Cars dancing around :P ). However the dancing-level went on a bit of low-side thereafter. But the last dancing sequence was really good and enjoyable too.
Personally, I liked the concept of "The MOB" and dancing at random and unexpected places.
Watch if You are very much into dance or just to chill out with your friends (like I did! :-) ;-) )