My dad once said to me, "You give a lot of books three stars." I do.
I like most stories with mixed protagonists, so Skim delivered there. However, the rest of the story didn't capture me. I did like watching Katie and Kim's relationship develop, but there was so little of it in the book.
I think if I were in high school or under duress I would have enjoyed the story more. But as it is, I just didn't connect with Kim and her story.