I wasn't planning to start reading this. But I was moving books around and I flipped it open--as you do--glanced at a page, and spent the next moment blinking over the description of the severed head "flying through the window and proclaiming it was in love with me" (I'd want to check that quote; might not be 100% accurate, but that's definitely what happened).
Started from the beginning. Can't speak to structure and overarching story yet, but the writing feels in some ways like a cross between John Dies at the End and The Bridge. Or a rather gruesome alien invasion book I read in the early 90s that for some reason I associate with Abyss books. (Anyone else remember the Abyss line?) It's going to be interesting.