I really enjoyed this book when I read it 4 years ago. I just finished reading it a second time and still recommend it! I can see how other reviewers thought his tone was condescending, but I didn't take it that way at all. He has a sense of humor that comes out in his writing style; I guess some people don't like his wit. The book was very convicting and helped me see errors in my thinking on work & rest. I highly recommend the book for someone who is a Type A or Ennegram 1 personality like me or who is a workaholic. It's exactly what I needed to hear. I have a desire to do things right, and I tend to judge my day based on productivity. As a recovering perfectionist, I used to constantly work to make things better and often felt guilty when I rested because I thought there was always something of more value that I could be doing with my time or money. But I regularly reached exhaustion or burn out and would crash physically, mentally, and emotionally. Thanks to lessons learned in this book, I've developed better work/rest patterns which has brought more peace to my life.