I'm converting my current D&D game from 3.5 to Pathfinder, so I wanted to buy myself a copy of the rulebook rather than mooching off my friend's. Naturally, in the game store, I also had to buy the Bestiary and Bestiary 2. I forgot how expensive gaming books are when you buy them new and not at the used bookstore. Jeez.
I read through this book, skimming some parts I knew well, and reading others more closely. It's very well-written, more accessible, I think, than D&D is. Many of the rules are explained more fully and in a more comprehensible way. I also really like the art, and the emphasis on capable and experienced adventurers no matter their gender or age.
As long as I have some people who are really experts in my group, I will probably never need to read this cover-to-cover, and for that I'm grateful, because my head starts swimming after battle statistics after awhile. But it's definitely a well-done book and worthy of the adulation it gets in my group.