I would say any book that holds my interest like that deserves a 5-start rating, though there are a few things that I'd tweak to get it closer to perfection. My official score, being a tough grader, is a 4.6/5.0 and I wouldn't resell it for twice what I paid ... especially now that it's fully highlighted and sticky-noted throughout (which makes the book more valuable to me now because I've identified the portions that spoke directly to me and my own experiences).