I watched this quite recently, it was quite enjoyable although I thought the most interesting interviews (i.e. Kurtz and Prowse) weren't long enough and the least interesting ones (some dude dressed as Boba Fett? wut?) had way too much screen time.

Also it was cool to get the perspective from Indy fans, as most publications tend to focus entirely on George's relationship with Star Wars fans and neglect Indy fans completely. I'm sure the inevitable RLM review of Crystal Skull will fix that, though.