I really enjoyed it.
I came away with a new found respect for Jack White, who's playing I never really got into. Watching him in this movie helped me appreciate his playing though, and he seems like an interesting cat.
Favorite part was when Page was playing the intro to "Whole lotta love" and The Edge and White where just sitting there, probably thinking "holy smokes, I'm sitting here 5 feet from Jimmy Page and he's playing Whole lotta love, it doesn't get any better then this"... anyway, that's what I would be thinking!
It was neat to listen to Page talk - he was a hero of mine when I was started playing in the 70's.