Just watched this and I can honestly say I loved the hell out of it. Not really a huge fan of any of the bands featured except Forever Came Calling, but it didn't matter. Gained a little bit of respect for everyone, and surprisingly a lot for Drew from NSN. It's defintely worth the watch, it hit me pretty strongly.
Rented this as soon as I saw the post. My only complaint is that I should have bought it, as I know I would watch it again. Really enjoyed it, well put together. Would recommend it to anyone who's been to warped tour, any band that's played it, or just anyone who is a fan of music in general.