Basically there's some good things you can take away from it and some things that belong in the bushes.
The thing I agree with the most is the focus the book places on people being determined and committed to being rich.
Most people are not fit to be rich. Not necessarily because they lack the intelligence for it. Plenty of rich people have employees or junior parters who are much smarter than them. The fact is that most people don't want to be rich deep down in their heart of hearts. Sure, they fantasize about it every now and then. They're window shopping and see some nice gear and think to themselves "boy I wish I was rich, I would buy that immediately." Then the bus comes and all thoughts of being rich vanish. That's how 99% of the people are, and that's why 99% of the people will never be rich. And there's nothing wrong with that.
Those that will be rich however, are far different. To be rich, you must be committed to it. You have to seek it. Covet it. With no hesitation or reservation. You must think of it above all else. Work yourself into a blind,white hot, single-minded, obssessive passion. You eat, breathe and sleep being rich. Devote your entire existence to it.
Think about all the people you know: how many of them are really like that? None, I'd bet. But the Bill Gates of the world, the Steve Jobs, Rockefellers, Henry Fords, Andrew Carnegies etc. they are exactly like that.
I'd say that's the most important 'asset' in the quest to riches, more than education, race, intelligence, upbringing, initial capital etc.