Protraph
Lack of good storyline.
Roy Hart
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.
Ariella Broughton
It is neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.
Edwin
The storyline feels a little thin and moth-eaten in parts but this sequel is plenty of fun.