This is the worst guide book I've ever used.
We bought it in the airport before going as it was the only book they had in the shop. We only needed it for Rio, Ilha Grande, Paraty and Sao Paolo but we hardly used it at all. I've previously used Lonely Planet and Footprint guides and have always found them to be invaluable.
Our main issues with the book were:
1) The maps are too simple, few and far between (there's not even a map for Ilha Grande) and don't give much info.
2) The lists of accommodation and places to eat are too short and never seem to include the best places that we heard about through word of mouth.
3) Advice on how to get from one place to another is poor and no indication is given of how long the journeys should take. This could prove incredibly frustrating when planning your route.
During our time in Brazil, we have been planning our trip to Bolivia and Peru with a Footprint guide. The difference in ease of use and quality is staggering.
I noticed that our hostel in Rio had about three copies of this book (but not one copy of another brand of guide book) in their book exchange cabinet...now I know why!