Just finished Blood-C. Yeah, I really liked it. I guess I'm a rebel. I'm not sure why there was so must angst against it. I can't wait to see the movie. I approached the material as completely unconnected with Blood+, which, frankly, it is.
I think that's the main reason why people didn't like it. Almost everyone is treating the title as if it were canon to Blood+ or Blood: The Last Vampire, while it should probably treat it more like a typical Gundam series (different characters, timeline, etc...).