Rah Xephon as most people seem to know is a Mecha anime involving a Mecha of the same name. I suppose I should start with disclaimer that I'm not a big fan of Mecha anime and I fear this has colored my outlook somewhat. The anime starts out following around our hero Ayato while Tokyo is attacked by unknown people. Likewise our hero is also attacked by unknown thugs with green blood, but is saved by girl in sunglasses, who turns out to be our heroine. And thus the show starts with a very promising beginning with lots of mysteries, Such as why is our hero important, who are these aliens, why is our heroine attracted to Ayato, why are there Mecha in this anime?
The Good:
The mystery is very nice and even better things are properly wrapped up in the end. So I defiantly give lots props for the Into and the ending episodes.(though I could done with less mecha sex in the ending.) The main Heroine is pretty cool, and her willingness to put up with our hero's mood swings is quite amazing. Unfortunately she devolves into a lowly love interest towards the end.
The Bad:
The middle of the Series seems to have far to many Dolem of the week episodes. I almost gave up on there series around episode ten because it seemed like it wasn't going anywhere. I guess if I were a Mecha maniac I'd have loved seeing the Rah Xephon Own the Dolems, but sadly that wasn't the case. The other bad thing involved the fact that I usually was happy when a character died since I found many of the minor characters to be on the annoying side. In conclusion: Rah Xephon is quite entertaining as long as you can get through the Dolem of the week episodes.