What I find most interesting is the large number of pre-genned PCs in the back of the adventure. They include a bunch of stuff from the PHB, including races such as the Orc and Gnome, and classes like Sorcerer, Paladin, Ranger, War Cleric domain, etc. The Paladin's Detect Evil is gone (yay!), replaced by an ability to sense demons, devils, celestials, and desecrated/consecrated grounds. No more "Is this guy in the bar evil? How about that city guard? That shopkeeper?" Well worth the dl just for the preview of all that stuff!