Rich information

It has rich information, as other Lonely Planet travel guides do.
I only traveled around Lima and Cuzco region. Even in that case, this book really helped me to go around smoothly.

But it is always impossible to cover all e.g. hotels and hostels even in one city.
This book gives us good back ground knowledge for extra search through the internet or asking indigenous people.
If we had a little Spanish language skill, the travel must have been much greater fun.