Long ago, I read an old version of his book which I thought was about 10% inspirational or insightful, e.g. "your home is a liability, not an asset" (which isn't entirely true, but did made me think about things differently).
The other 90% was either hokey, complete crap designed to sell his other books/seminars, or even advising fraud. If I recall, he encouraged people to take a vacation to Hawaii, look at one For Sale property, then call the trip a business trip since you are a real estate investor. Unfortunately, the IRS actually has rules about these things, and Mr Kiyosaki didn't write them...
If you need someone to convince you that you can get more wealthy by doing things differently, then I suppose he could do that. If you are looking for ways to actually get there, the book doesn't provide them, and what it does tell you to do may get you in trouble.