I like the RDPD book*, but I couldn't even stomach the 4-hour work day. From page one, it screamed 100% false. Felt like I'd have to be retarded to believe any of it. Strangely, I haven't heard others say the same.
I loved it. It's a motivational book, but as a disclaimer, I had my "muse" (business with passive income) already running before I read that book. I also had a day job, which I have quit now (actually, by the end of next week). The 4HWW gave me a strong impulse to do the step and quit my job.
And someone else mentioned here already: 4HWW is to give you a mindset. It worked pretty well for me.
