I would classify this as a good airport novel or a beach novel. Not terribly taxing, but one of the few times that I've been inspired to say that the movie is better. The casting and acting in the film was phenomenal. The screenwriters took a solid script and translated it into a different media and made it better. 
 One thing I can't reconcile, and will always bug me now, is the fava bean quote. In the film it's "A census taker once tried to test me. I ate his liver with some fava beans and a nice chianti." In the book it's "A census taker once tried to quantify me. I ate his liver with some fava beans and a [insert specific brant or variety]." The use of the word "quantify" from the book was superior, as she's trying to get him to take a personality test so they can add him to their database. Also, census takers quantify folks, not test them. However, stepping back to the use of "chianti" is more effective, as it gets the point across nicely without relying on the reader being a wine conniseur. So the better line in my head will always be a combination of the two.