The pacing, I thought, was excellent. I would've loved to see more episodes, but they managed to give you a lot of information with a good balance between the 13 episodes. There was never a point where I was bored, or waiting for it to get on with the story. I was thoroughly involved the whole way along.
The character development was another really strong point. You come to care for all the characters, especially given how many characters have troubled pasts.
The fight scenes are incredibly animated and just BAD ASS.
The story is original, action paced, and tragic at times. Definitely check it out! :D
