For as many things the show did right, there are also some issues that plague it which took away from my overall enjoyment of the show. The biggest one for me were some of the later episodes. We take detours from the main story with the excuse that some proxy is causing it. These episodes hardly offer anything new to the story or are an excuse for some forgotten exposition. In addition to that there is no start or end to it. The following episodes are like these things never happend. The second big thing is it's sometime borderline pretentious philosophical dialogue. Some of these work as a oneliners but that's about it. It's in the same way like everyone on CSI is a smartass about something on demand. Not only that, most people and many locations have been given a name from mythology.
Still, the art is good and there are some fine episodes in there. And let's not forget the best token loli I've seen, Pino :). If you're looking for an action show with the anime Amy Lee shown on the fanart you might want to stay away from it.