It's a good movie. You learn some history of each of the three musicians, and some of what makes them tick, and why they play what they do.
I enjoyed the fact that Jack White started saying he didn't like technology/effects, etc. Yet he ended up smiling and nodding at some of Edge's stuff, maybe he didn't care for it, but he wasn't disdainful.
The diddly-bo he strung up on the fly was slick, too.
They both showed JP some respect, that was cool.