When you say "not finished", do you mean that the manga-ka never completed the story or that the scanlation groups didn't complete it?

As for the manga itself, the thing that attracted me was definitely the art. (as everyone said) The story might seem a little boring but I really like the concept of Alichinos. It's probably an old idea (beautiful creatures taking your soul in exchange for a wish) but after reading volume 2 by Tokyopop, it made me think that the 'bad' Alichinos aren't bad at all. Maybe I'm reading into it too much but I think that Alichinos are supposed to put humans that are too lost in their grief out of misery with the idea that they'll be granted a wish. Like, they'll die happy knowing that their wish is granted. Of course there are truly bad Alichinos but as a specie, that's what I think their purpose is.