Five stars to the first half of the book (chapters 1 to 3), which is a compilation of near death experiences and verifiable reports of other people about them. The introductory text is really good, too. Three stars for the second third. One star for the rest of the book. The body of evidence for the "other" phenomena becomes thinner and thinner and the rigorous examination weaker and weaker.
I find the fixation about pulse and its relation with consciousness funny. The lack of background expertise is a clear weakness. It shows a bit at the beginning of the book but becomes more evident at the end when they discuss paranormal phenomena and potential fraud.
Despite all of this, I still consider parts of this book a MUST READ, and it is worth paying (for the digital edition that is cheaper).