Ok.
I have thoughts.
I screwed up a little bit, because going into this book I thought these were going to be funny lighthearted stories. Once I read the authors note at the beginning, I realized I may be extremely incorrect in my assumption. Because of this, I was initially shocked by the gravity of the stories and almost forgot that this was someone simply meeting up with a stranger, writing down their tragic stories and then using them for their own gain and profit? It started to feel a little funky and icky the more I got into it. I'm too lazy to go back and see if she said that the people who she was meeting with knew that their stories were being used for (I would assume not since this was a gradual career change for the author), but if not... oof. 
The idea of the book is wonderful, and I think it is a humbling reminder of how lucky I am to have the life I currently have. But I saw a review talking about how there seemed to be no empathy from the author for the people whose stories they were using. No giving back to a charity or the people themselves which I think could have changed my overall opinion. Also, like many have said... the stories seem to have been heavily edited and not super authentic to the original teller. I noticed almost immediately that there was a lot of "fluff" and similarities in speaking between all the stories that I don't think were coincidence. 
I would say this is more like a 3 1/2, but I did enjoy reading it, so I'll give it the 4 lol.