This is a tender, generous movie that likes its characters and presents them as real people, full of flaws and strengths.

Your blood may run cold, but you now find yourself pinioned to the story.

It’s sentimental, ridiculously long and only occasionally funny

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.