This book was written in first person, from Callie's POV. As you probably know by now, I am a major supporter of first person, and this book was all the better for using it. If it had not been from a first person viewpoint - specifically Callie's - I feel as if I would not have liked this book very much.
The characters were 3-D and believable. They had their fears, their joys, their sad and happy memories. There was just enough tension and sadness to keep the story and plot rolling, without OD-ing.
This book was really mainly romance. There was an actual plot of course, trying to find out about the diary and who it belonged to... but it all spun back to romance: Heloise and Abelard's, Callie's and August's, the owner of the diary's. If you don't like romance, then don't read. However if you are a hopeless romantic like me, I would suggest it.
Oh, and I'm in love with August. NBD.