The title of this book is misleading. The title suggests that the book is mostly about Cancun if not exclusively. However, this book is not really about Cancun, but Yucatan peninsula.
The author seems to have enjoyed everything about Mexico and does not offer any real criticism (even a comparative one)about anything. Therefore, it is hard to make a trade off between restaurants, archeological sites or theme parks. If you are going to stay in Cancun for a month that does not matter. However, we spent just one week and the book did not help us at all to choose between attractions.
It also does not give any information on differences between tour organizers, so when the same tour is offered with $20 difference, you don't know if it is because one is better than other, or just one of them happens to have some deal with the hotel you stay in.
I found that in Cancun most of the restuarants offer terrible food at very expensive prices. The book suggests that almost all restaurants are good at Cancun and also does not classify them neither based on price, nor location, but on cousine and stops short of giving price information.
It provides very little detail on Xcaret -one paragraph- which is one of the main attractions close to Cancun.
The maps in then book were lacking detail.
I was very disappointed with this book. The only positive thing about this book is, it tells the history of the area in enough details.
I do not recommend this book to anyone.