Id say it was the best thing to come out that season. The story was good, the art was basically a replication of TTGL and the OST is amazing. I know a few people- myself included- didn't like where the story went around the 5th-8th(I think, been a while) episode.
Empire's review is pretty solid nonetheless. Its worthy of atleast an 8-9. However if hes grabbing this rating from MAL, they have the worst rating system in man kind.
ill get to it one day.. not like its going anywhere haha