A very good read and definitely worth the money, but not perfect. My only real objection is that Monte seems to have this strange idea that casters are underpowered and needed a boost and that Fighters are overpowered and could stand to be toned down. I'd hope it would be obvious that the complete opposite is true, but whatever. Combining this with a few house rules of my own is producing a very good and playable ruleset, so I'm happy!
There really are a lot of excellent rules in here. The changes to Paladins, Rangers, and Druids are my favourite, and the little changes like Trip and how Poisons work are quite useful as well. It's also nice to see some of my houserules validated by knowing Monte Cook does the same thing. Definitely worth picking up, even if you don't use everything in it.
[4 of 5 Stars!]