If you're interested in the topic at hand, you should just watch it and judge yourself because the reviews have gone very biased by people that didn't even watch it and just hate (or love) the creator. I liked it, it was well written, narrated, and directed and it was about a topic that interests me.

It is an exhilarating, distressing, funny and profound film, with one of the more memorable film scores in years,

One of the best movies of the year! Incredible from the beginning to the end.

There is definitely an excellent idea hidden in the background of the film. Unfortunately, it's difficult to find it.