If you are buying this because you want a surfing documentary, personally, I would look elsewhere as you may be disappointed. I, on the other hand, wanted something to watch in 3D and was definitely not disappointed!
There are moments when the content pops out of the screen which are incredible, and I often found myself wanting to wipe the lenses of my 3D glasses, thinking the water had splashed on them. Depth and clarity are where this documentary really shines though. At a few different points in the film, two men are speaking in front of the camera whilst others are behind them (vague description as do not want to ruin anything) and it looks as though they are quite literally sat right there, as if your tv is nothing more than a picture frame and they are sat the other side. (Not sure if that description is very good, but the scene is mind blowing, me and a friend were just laughing and reaching out to the screen!)
As I said at the start, this film is not an amazingly informative documentary, there are bits and pieces of information throughout, but they may be lacking if you already know your stuff. If, however, you are just looking for an incredible 3D experience, I can safely say this is the best piece of 3D film i have seen to date! I loved this, even though I am not into surfing at all!