I just watched the whole thing. I think what you've got here is a solid video that you could press on DVDs and sell at shows. The editing is very pro, as is a lot of the camera work. I agree that the audio on the "beach" scene leaves a lot to be desired. For a fan DVD, it may be fine. For any kind of theatrical showing, probably not.
The phrase you used is "critical recognition", and that's the only reason why I'm going to bring this up: I don't think this is the kind of film that can really attract an audience outside of your fan base. Most great (or at least critically acclaimed) documentaries manage to capture an overriding story, with plenty of drama, and keep you on your seat about what's going to happen next. Think "Anvil: The Story of Anvil". I'm not an Anvil fan, or even a metal fan, but I loved that movie, because it had that drama. Your band seems pretty drama-free, and that's a blessing. But it doesn't really make for compelling filmmaking. "Unsigned band goes on tour" isn't really much of a story to hang a film on.
There were moments of drama, of course, such as the cancelled gig that resulted in what looked like a very successful street performance. A little more buildup to that, with maybe some shots of people freaking out or getting angry about the situation, a band meeting, a plan, one guy doesn't like the plan, he gets talked into it, blah, blah, blah. But maybe you guys really are just as easygoing as you seem. I just can't help but wonder what we would have seen if the director wasn't in the band. Something less cuddly, I bet, but more compelling for all that.
That little criticism aside, the film definitely DOES succeed in giving fans an inside look at what really goes on on a tour. Watching you guys do your laundry is way more entertaining than it has any right to be, precisely because that's the stuff nobody thinks about when they think about a band on tour.
AND I want to say that the songwriting is excellent, the band is tight, and the vocals are especially impressive.
