About the only issues I had for the book are that one I reread The Boarding School Experiment directly before starting this and I could have sworn the speakers of some of the statements in the recreated scenes were different. Not the words that were said but who said them so that bugged me. Also not so much a negative thing but I want more, not just of Rhys and Kaitlin, but of all four leading characters from The Boarding School Experiment which I definitely feel should be read prior to reading this book. The things brought up about the changes in Rhys and Kaitlin in Prep School Experiment bring me more questions about Elena and Thane that I'd really like to see answered. I know Kaitlin and Rhys were actually matched but it was mentioned in The Boarding School Experiment that Thane had the same calming affect on Elena as Kaitlin has on Rhys so that gives me the impression that had there been a new testing Elena and Thane would have been pretty high on the compatibility scale as well and I can't help wondering if this is true and if they have similar dreams to what Rhys and Kaitlin experience in this book. Also with the twist near the end with who all the villains are it makes me question if even though the vitamins stopped that those who remained at the school weren't still getting the drug in their food at the school. Especially considering who was the first to awaken at the end. This hasn't been addressed in the story so I'd like to see another one in this series which does address that and also address which changes from that experiment will stay with them and which won't. I realize that's not so much a love story but the premise behind this series is so intriguing that I really feel it's been under explored and I'd like to see more with the primary characters of the first novel still as the focus of the book. I'm one of those people that really doesn't like it when I'm stuck with so many questions without answers at the end of a story so it's positive in that I'd like to see more but negative in that I'm irritated because I don't feel I've seen enough. On a more positive note there were a couple of intriguing secondary characters introduced in this story that I'm also hoping we see more of. She mentions Thayer who is this giant contradiction, he behaves like an outsider but is the most sought after guy in school. He's got this rich messed up background and personality that was brought in just enough to kind of taunt you to want to know more about him, but not enough to really know him. There's also Christian, Rhys's twin who just found his long lost switched at birth raised on the wrong side of the tracks and scientifically enhanced counterpart and doesn't seem to have that much of any emotional reaction to it from the outside. Again Evans sets of this rich premise for a character just enough to drive you nuts wanting to know more. I truly hope to see Thayer and Christian get stories in the future especially if those stories involved Kaitlin, Elena, Thane and Rhys as involved secondary characters because beyond the rich teaser characters they present here they would also offer an outside view of the experiment from this series and what being around those kids is like for an outsider, are they different in anyway? Plus I feel the concept of the long lost missing twin was really under explored here as well. It's a good story, a great follow up the The Boarding School experiment but it has a lot of under explored characters, plot lines and concepts that I wish we'd seen more of in this story and I hope to learn more of in future stories from Evans. I think that's my biggest issue is that I end a book that while it provides an end leaves me with just too many curiosities and what ifs.