I never was a great fan of the lonely planet guides and probably never will be. Most travel books I buy have big pictures with highlights of the must see points in a place. My partner on the other hand has an eye for the detail and the lonely planet guides are the only ones she will ever buy. When we started looking for a book for Norway for our trip this summer, this was one of the few books available on the areas we wanted to cover. And I have to admit, the detail and accuracy of the book is quite astonishing.
We started our journet in Bergen and moved on to some remote parts. Where as the Bergen Guide(available from the tourist board) is your best bet for Bergen, you will not find find a better book for the other parts of Norway. All details like locations, restaurants, trips, activities were remarkably accurate and went a long way in making our holiday memorable.
I might finally be getting converted to a lonely planet fan!