Hunter: the Vigil is my favorite game and this supplement is pure Awesome!
The writing is very interesting throughout the book. It takes a closer look into each of the core compacts and conspiracies. The compacts each get a new endowment that is very flavorful and very cool. They aren't as powerful as the endowments for the conspiracies, but that's as it should be! The conspiracies also get a few new mechanical things, but nothing huge or game-breaking. The new things fit into the flavor and character of the conspiracies very well.
The part that I love the most about this is the fact that it looks deeper into the organizations. Each group gets more explanation. The sub-groups with in the compacts and conspiracies get more treatment. It tells you who belongs to each group and why they tend to be there. You even get to see, to a greater extent than before, the views each sub-group has of the others within the organization.
Like with all White Wolf books, this supplement is very "take what you want... leave the rest", and that's part of makes it so cool!
I recommend it!
[5 of 5 Stars!]