I liked Jessica Sorensen's The Coincidence of Callie and Kayden. The plot drew you in, the characters were interesting and they had chemistry. The title of the book gives away the main catalyst of the story - a big coincidence that changes the path of the two main characters. I'm not a big fan of these coincidental events that drive a book's plot, but it didn't seem too much of a stretch. It felt appropriate for the story.
The main sticking point I have with Sorensen's The Coincidence is that, although the book deals with very complex issues, they seemed over simplified, even two dimensional. Problems like theirs can't be solved within a few weeks; they don't appear one moment and disappear the next. Callie and Kayden, along with the other characters, had much of the same problem - they just didn't have many layers. Callie and Kayden certainly had faced very difficult, tragic situations, but there were points where the writing let the reader down. It just didn't expand on their emotions and their lives effectively - the connection between the author's words and her characters' feelings was missing.
Overall, I would read The Coincidence again. It's an easy read, it has passion, and you want to get involved in these characters' lives. I would recommend it to anyone looking for a more angsty contemporary romance.