I wanted to listen to this book because I wanted to hear more about John Wayne Gacy but I didn't want to waste my time choosing a dissatisfying podcast. I think it was informative and interesting, and I liked the tidbits about the broader cultural touchstones that were woven into the chapters.

For the negatives: The structure of the book was pretty confusing since it didn't appear to be strictly chronological and I couldn't make out any other organization method, but I was just halfway listening while doing other things so it didn't bother me. I felt the author was a bit crass in reference to some of the victims, making macabre puns and the choice of some phrases seemed inappropriate -- this is pretty recent history and family members of the victims are still alive. 

Overall I think it was a decent book on the topic. I would have liked to learn more about the victims and Gacy's family, as well as the theory that that he had an accomplice (now I need to watch The Clown and The Candyman).