It's impossible to tour Mozambique as a foreigner without some kind of local orientation, context and map, and this book is therefore an essential for all Mozambican travel.
The background information is helpful and the book is great for geting you oriented in new places.
Hotel, restaurant and bar recommendations date quickly, however, and be careful not to let the book completely dominate your decision making - go with a hunch and take random spontaneous opportunities that come your way.
Take this book with you, but bear in mind that Mozambique is a country which rewards the spontaneous, the instinctive and the brave.