This was a "read in one sitting" book for me. I enjoyed it just as much as I did DUFF and I am honestly very excited to read the rest of Keplinger's books. I'm also impressed at an author so young.
This is listed as a companion to The DUFF because it happens at Hamilton High and cameos some of the characters we got to know in that book. Other than the cameos and location, this could easily be read as a stand alone. I enjoy a continuation of a story, but I also like getting to know other people within the world that was created in a previous book, so I did like that aspect of this book. I also liked that there were similarities to the first story, but not to the point where it felt like I was reading the same story with different people. I think YA fans and fans of contemporary romances would enjoy this book.