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 neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.

I didn’t really have many expectations going into the movie (good or bad), but I actually really enjoyed it. I really liked the characters and the banter between them.

All of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.