What makes it different from others?

Excellent but underrated film

I wanted to like it more than I actually did... But much of the humor totally escaped me and I walked out only mildly impressed.

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.