I've had this guide for a while, and I am so glad that I got it. The NPC's built in the guide have gone a long ways towards helping me build adversaries for my players in their campaign. I've also used some of their maps as a starting point for locations. Everything is very well done, and the NPC's provide unique capabilities that surprise and challenge my players. They also spark ideas for me to use and add to other creatures they may come across.
This has definitely been my main go-to resource for helping me populate my campaign.
[5 of 5 Stars!]