Quite a lot, actually. It's visually striking, with bits of odd and hilarious comedy sprinkled about. Not to mention a pretty stark look at the vapid American youth, and their "dreams".
It's a great movie. You just have to prepare. If you haven't seen Harmony's other films, you ain't got no business seeing Spring Breakers. You just won't get it. And I don't mean that in a "its soo deep way", you just literally won't understand how that crazy man's mind works, and you won't be prepared for what you're about to see.