I've seen the anime, but I can't say anything really good about it.

The only thing it really had going for it at all was the gore, but even then I thought it was pretty underwhelming. There's more to making scenes that make you go "whoa this is violent/gruesome" than drawing a lot of red everywhere, imo.
Also, whenever the main character was in ditz-mode and going "nyu" (or was it "nya"?) all over the place like a pokemon it pretty much drove me insane.