This was my first anime, and got me really into watching. It is quite suspenseful, but provides comic relief at the right times. I like how the story is not totally based on just one character/set of partners, and involves both in and out of school situations. The animation is nicely done, and each character has a distinctive personality. The whole storyline revolves around souls, which I find to be an interesting concept. The anime does not make any drastic changes from the original; it really brings the manga to life.
The only thing that irked me was the ending. Yes, hope and just believing in general is great, and helps people get through harsh times. But who knew courage would end the whole battle that seemed so one-sided, by the hands of some small school-girl without a weapon? Wait, pardon me, it seems courage was her weapon. I don't know about other people, but the ending just didn't seem to fit quite well with everything the series led up to.
Other than that, it is definitely an anime worth checking out.
