While well put-together and very informative, I can't give this book my full recommendation as it lacks almost everything I purchased it for. There are in-depth descriptions of the culture, geography, and history of Westeros and its many regions, as well as character stats for most of the major characters in the novels.
What it lacks is the primary things I was hoping to get for it: namely the House statistics for the major Houses from the novels. If you were hoping to use this book to play a House-focused game using one of the great houses, or just hoped to use them as benchmarks for your own custom-made house, you're out of luck here. It also lacks any information on said house's armies.
Buy it if you want lots of great fluff or stats for individual characters in the novels. Avoid it if you were hoping for solid numbers on the forces and macro statistics of each hose.
[3 of 5 Stars!]