Sadly, listening to the soundtrack and reading the lyrics is the best part of this show. Overall, I found that this show got my hopes sky-high and then crushed them down again.
The setting was incredibly promising. The story could have had excellent sci-fi and drama. The first few episodes hinted at amazing character interactions. However, by about the fifth episode of thirteen, the story was flailing all over the place. The writers were trying to keep too many mysteries and not communicating any information. There were fight scenes, but the fighting was the least original part of this series. There is even an episode near the end that is told in a much different way than the other episodes, which is a nice touch, but it's nowhere near enough to rescue the plot or the lost opportunities for character development.
I still have the soundtrack on my MP3 player and I listen to it frequently. The show, however, is at the top of my list of how not to do an anime.
