Where does the actual advice start? This book is recommended pretty much every time someone asks a similar question, I might be willing to give it another shot if there's actual content somewhere in it.
Also, did this guy create a successful business outside of his self-help stuff before he started writing these books?
Prior to reading the book, I had a retire-early mindset. My idea was to work hard at high paying jobs and save a lot so I could retire early. After reading the book, I had the idea to create multiple streams of income in order to achieve the goal of retiring early.
Others have mentioned that it's not easy to find a lifestyle business that earns you enough income to live off of, and I've also had that problem. However, I've had partial success. I don't think I'd have ever pursued this path without reading 4HWW. It's not an instruction manual, though.
I think part of the reason I'll never have a great deal of money is that the idea of tricking someone into buying a useless product makes me uncomfortable. As does adding more plastic and trash into the world.