It really plays off of the newly popularized style of humor in "cartoons for adults" lately that is more about the way the joke is delivered than the joke itself... I found several parts of the movie worth a chuckle, a few parts dramatic enough to keep my attention, and the rest of the time I was just taking in all of the strangeness from how it was filmed. The way the movie wrapped up was one of its most lacking areas though.
I don't know if you can see the 4003 get blown up but it comes back with duct tape all over it. Ultimately it gets replaced by a completely different, Jetglo Ric wielded by a different bassist. Not only that, but the vegan dude's bass part was actually recorded with a Ric, so I'm told, and Scott's part with a Mustang... so I guess I was kind of rooting for the vegan dude by the time I saw the movie.

Frankly the way Scott beats the vegan and what follows might be my favorite part in the whole film. Pretty funny, along with the concept of vegan superiority. This is definitely a movie for younger people in a lot of ways.