Amazing! (slight spoilers)
I friggin' loved this movie!
The beginning was simultaneously sad, funny, and embarrassing to watch... after the second part (the pseudo-documentary) started I thought that the movie will go downhill from there, but it was still very intriguing. Actually the change of perspective/style was maybe even necessary to keep things interesting, I think it could've been too much if the whole movie would've taken place at the reunion.