I don't agree with a number of things in this book, but it is still worth the read. I bought this as a gift for a family member, but wanted to read it first to know what was in it and if it was something I would endorse. I do. There's a lot worse you could do than reading this book. Where I differ is in how obsessed the authors come across, with making money. It seems out of balance to me, but maybe that's because I am older and have no desire to put so much thought or energy into becoming any more wealthy. I'm satisfied with where I'm at and the freedom it affords me. If you are young and ambitious then you will see thing differently.
One disagreement I have is about vehicles. They mention it more than once in this book, how "the guy driving the used Toyota is probably wealthier than guy in the new BMW." It's a bit cliche'. You can get a much better deal on a used BMW. Just do an Autotrader search in a large city like Vancouver, on a 2015 to 2020 Toyota 4-runner and compare the results to a 2015-2020 BMW X3. I just did this and found 37 BMWs compared to 22 4-runners. Every 4-runner was priced $2 or $3k above market value and the bimmers were all $3 to $5k below market value. This is because Toyota owners are frugal and loyal whereas most of the bmw owners in a place like Vancouver or Toronto are all about status so they constantly trade them in for the latest model. This produces a good deal of inventory for frugal people to buy a used bmw for cheap and drive it forever. On top of this there are a lot of bmw enthusiast that post all sorts of videos on how to fix or modify your pompous purchase, and from experience, they are pretty easy to work on.