I watched the anime adaptation before reading the book. My experiences with watching the anime and reading the books are very different. Even though both stories are the same, I find myself preferring the anime adaptation of these two stories in this first book than the actual book itself. The anime has a striking visual style and exciting animation that helps keep my interest. While reading the source material, I find my attention drifting off the pages for a while. I enjoy both stories, but the ongoing random conversations between several characters, at times tedious rather than amusing. It doesn't help. There are times that I have a hard time distinguishing the narrator and Hitagi because they sound similar at specific points in the book.
Anyway, despite its flaws, I thought it was entertaining and check out the future volumes of this series.