I have just watched the anime, Elfen Lied and I would say it was alright. If you are a fan of blood and body being chopped up, I guess this is for you. It also contain mild ecchi, a little romance and action.
What I loved most of this anime is the opening song. A very beautiful latin song which attracted me. Other than that, everything was fair.
The plot is alright. I'm a person who enjoys seeing blood, people being killed and thrillers and I say this is good. Lots of blood. *laughs* This anime was worth my time.
Overall, 7/10.