I enjoyed this more than I expected to. I'm a sucker for movies about music and try to watch 'em all regardless of how good or bad they are. Pitch Perfect was a fence-sitter for me as it looked like some kind of teen college flick and yet had Anna Kendrick in it. The plot is pretty clichéd albeit with a USP of it being a movie about an a acapella band contest which is new, and the acting is average. However, every now and then, it surprises you with something ridiculous out of left field which results in a periodic revival of interest.
Worth watching if you like teen flicks, musicals, and weirdness.