This is an extremely complex story, which rewards both players and GMs who run it. It takes a lot effort to keep juggling all the balls in the adventurepath, but it is worth it.
The material is very well thought out, very easy to access, even if it will take time to master it. It is also very flexible, so it is easy to tailorsuit it to your players' style of play.
[5 of 5 Stars!]