I thought it was pretty good. You picked a pretty good person to make a documentary on.
A couple of things I noticed was that the audio levels seemed to change a bit and there was a fuzz in the audio of some shots.
Also, i understand it's a documentary, but the way you ended it off with him ripping a bong and then catering to his child. It just seemed to give off a completely different vibe than the rest of the video.
Did you have access to lighting equipment? There were a lot of distracting shadows on some of the indoor interview shots. I think a hair light would have done a lot in the lighting aspect.
I also agree with the above post about the bong and then the kid. I can see how you wanted the shot as it goes well with the music, but mehh Im not sure if that was a good call having it right before the baby footage. Although, that is the reality if this guys life, so it can go both ways.