So, I've been considering whether or not I want to buy this game now. As such, I grabbed this preview. I liked the light tone, amusing and informative footnotes, and everything. It felt much like a Terry Pratchett Novel or the Webcomic Digger, which are both quite good. As a preview, it obviously lacks much more than cursory information on the setting and system, but it gives you enough to get the gist of things. It does include what looks like the full text of the new Lifepath system, which can help you figure out a personality for your character, and the various point costs and basic explanations to mechanically define your character, so it would be possible to build a fairly complete character with just this preview book. To actually play the game, you need the full copy though.
Reading through this, there's definitely enough material here that you should be able to decide whether or not you'll like the game based on this. Me, I've resolved to get it sooner rather than later.