The Usual Suspects is just so usual, that i predicted the end in the beginning. So decent and boring, and i couldn't care less about the characters. But i think you should watch it, because all other people enjoyed it, and it may be just my point of view.
Don't really get the point of seeing this kind of entertainment movie, not to mention one that you immediately figured out from the VERY beginning the biggest "suspense" that it tries to keep. You learn nothing. What a total waste of time.