The anime is mostly exposition, and while this isn't always bad, while the exposition is done pretty well, I don't feel we've been given the chance to properly bond with the characters before we're presented with their back story and the back story of the actual story.
The ending is also pretty... terrible, in my opinion. It feels like it was trying to be epic, to be awesome, but it comes off as rushed, the art seems to degrade especially near the end, and the ending is pretty... hilarious, in a bad way.
The story was okay, expect the points I've already made, the art was very good at first but got worse later, not too much worse but it wasn't the best, not to sure on the sound as I don't think I've ever heard a bad soundtrack, the characters are decent, some stand out more than others, and aren't given enough attention in my opinion, and I enjoyed it quite a bit.
Overall a pretty good anime, worth trying at least, just don't expect the world.
