I'm definitely interested in trying this. I really like the concept of CR-monster leveling bonus with a normal class. I love playing monsters, but I hated taking monster class levels in D&D since my character was usually weaker (hit die wise) than everyone else. Pathfinder made playing monsters, or monster-like characters, a lot easier with their race builder--which is (surprisingly) balanced. Pathfinder is a great system; it fixed a lot of the problems in 3.5, and it's pretty easy to understand. And as a bonus, it's not as clunky as 3.5 in later levels.