I hesitate to give this book anything below 3 stars based on the fact the average rating is 4 stars - but here I go. I don't listen to this podcast regularly, but I do enjoy it every now and then. What I was expecting was something similar to the podcast, which would be mostly talk about murder cases with a mix of the author's real lives. This is not what I got - which was okay! However, what was not really okay was how repetitive the stories were, and how I could not for the life of me distinguish between the two author's voices (even while listening to them). 
I'll be honest though, "self help" books may not be for me. And I'm probably not in the age range for these life stories to be relevant. But also - none of this advice or anecdotes had insight that I hadn't heard before. It wasn't new to me, it didn't make me see the world differently. So that's why it gets 2 stars. It gets the .75 because the best parts really were when they started talking about specific murders, which is what I enjoy about their podcast in the first place.