Just finished up a lengthy campaign with this fantastic book. It's essentially a collection of procedures, mini-games, framing devices, story prompts, and (small) random tables that spur directed creativity at your table. That alone would be worth the money, but the organization and layout is the imho the killer feature: I downloaded the pdf like 10 minutes before the session, skimmed it real quick, and was able to utilize it with ease. You know a game like this is good when everyone at your table is excitedly trying to jump into the scene and add their own bits.
And to top it all off, the book features incredible, evocative art in a wide range of styles. Get this game, y'all.