Story - I didn't know what to expect originally. I've read most of the Higurashi mangas and I've read Elfen Lied (and seen both the animes). I didn't think that anything I read would be much worse than these two... How naiive of me... When I started reading this I was alone in my room, in the dark and I had to sit downstairs in the company of others to finish reading it. I almost expect to see the lolita standing outside my door right now...
Anyway, the story was very well done with a couple of interesting twist. Creepy too!

Art - As others have said, the art fit the manga perfectly. Especially the drawing of the creepy lolita with her empty eyes, bruised skin and her dirty clothing. All the horror sections were drawn very well.

Character - And I thought Rena and Lucy were insane, the development of the lolita is amazing. She is creepy and obsessive to no end. You really feel for the other characters that have to come across her.

Enjoyment - Enjoyment... Well, I read it in a couple of hours. I couldn't put it down and it creeped the hell out of me!

Overall - If you love horror manga, you will love this!