The thing I hated most about this series, was the way the characters were drawn. The boys were O.K, but they looked to feminine with what I felt were girly eyes. As well as that, after the first few episodes, the girl, Sunako, was almost constantly in 'chibi' form. I found this very annoying and felt that it didn't contribute to the story at all.
The story line was actually quite good, and I mostly enjoyed watching it but I feel that the story was unfinished and that by the end, nothing had happened.