Basic Plot: Ancient Thassilon affects Golarion yet again in the form of a broken Thassilonian artifact that PCs must hunt down the pieces to in order to save the world!
Seems a bit lofty for a bunch of level one characters, but it is the setup for an entire campaign, not just a single adventure, so it works in the end. The adventure reads logically, with pretty much every question I thought of answered as I kept reading. That certainly makes a GM's job easier. The monsters that aren't in standard Paizo books are all given clear stat blocks so the third-party books need not be purchased (yay saving money!). The appendices in the back for NPCs and equipment are also excellent, giving pictures and thorough descriptions in a way that is both easy to find and doesn't interrupt the general flow of the story layout.
Overall, looks fantastic and I'm looking forward to running it. If things go well, I'll probably be upgrading the rating to a full five stars.