My only real problem with the story was the characters. Despite some physical differences between most of the boys, I found it difficult to keep them straight, especially as none of them really have much in terms of personality. Oh, except for the one boy who, after all of the horrible things they do, suddenly grows a conscience when a girl becomes involved. I think I was supposed to be rooting for him at the end. Anyways, there's a plot point about one of the boys betraying the club, but without much investment in the characters, I really couldn't care less when the big reveal came. I think for a one-volume work, there were just too many characters crammed into this story, with few characters really vital to the story.
The real good stuff lies in the art, for the most part. It's just very pretty to look at. Yes, even intestines and eyeballs can be pretty to look at. But seriously, the art is really dark, but it's very clear and Furuya just makes the images surrounding this twisted little clubhouse look really cool. Another really neat part of the story is between the robot and the girl he kidnaps. I enjoyed their relationship quite a bit. But yes, overall, Lychee Light Club is a violent, bloody, sick good time, and it's all done in a knowing, fun way.