I'm really glad that we had this book for our Hawaii trip in the summer here. We have already read in it in advance and get valuable tips. Also on site we had the book mostly in the backpack and have reingeschaut on our tours from time to time. Especially helpful are also the ratings of various providers of tours and activities. As you certainly saves a lot of money when you read in advance what is worthwhile or not. However, you should also have some trotzallem form his own opinion and not blindly trust a guide. The book offers useful insider information and theoretically, you could explore the island on the basis of the cards. Because we are there but not as practiced, we took a Navi ;-) Everything is well described and especially amusing, it is not a dry guide through which you have to fight through. One should really buy it before starting the trip to this island paradise