The story was good but I wanted to see some background on how this experiment was conceived (maybe the movie will answer that question). I also wished they gave more back story to some of the characters. I liked how the story had some twists to keep me guessing. The characters were developed but I think there was room for even more development.
As far as art goes, I really enjoyed that aspect. I like quite a few series from Clamp and was initially surprised that they would do a series like this. Even when it got violent and bloody, the artwork was still great. Even the music was good, 'Spiral' was a great opening as well.
I'm not a big fan of really bloody shows but this is one of a few that I liked watching. It was slow at first but as it proceeded further the pace picked up and it was the perfect speed. I can't compare Blood+ and this show since the only connection I could see was that the protagonist was named Saya.
If you like blood, this maybe a show you could watch. If you don't, it may not be enjoyable.
