I purchased this book over a year ago prior to going on deployment.
I love the Lovecraftian feel to this setting. Great unfathomable beings selfishly moving about time and space for it's own ends. You and the rest of your world are only a means to that inexplicable end. The only wisdom a character can gain is that she simply knows that she can't fully know what the God Machine is or its intents. It leaves players having to do the best they can to preserve themselves, their understanding, and all they hold near and dear with what little knowledge they can glean.
As a storyteller, you have the opportunity to really push your players to the edge of sanity and reason when dealing with the mechanations of the God Machine, and the threat this thing holds can play well into whatever CoD setting (Vampire, Werewolf, etc.) you're running. Anything and everything is possible when dealing with the God Machine.
Additionally the book gives a revamp to the rules which serves to enhance and streamline a lot of the gameplay.
The God-Machine Chronicle really reignited my passion for the CoD line. I look forward to seeing it further built upon.
[5 of 5 Stars!]