One of the things I most appreciate is the writeup of the Warlock class. The Pathfinder modernized specifics make it a viable class for those of us who don't like MMO-at-the-tabletop WotC 4.0 rulesets. Other components such as chase rules, Morale (Dread, Fear, Insanity rules), and the like round out the Pathfinder core well for use with other settings.