I haven't started reading it, but I already have the feeling it is the usual unscientific advice book. It is just not possible for everyone to move develop a dorm room blog into an 8-figure-a-year company. This means that all the advice is anecdotal, not scientific, and probably not generally applicable.

The If Books Could Kill podcast (en.wikipedia.org/wiki/If_Books_Could_Kill) hasn't talked about this book but generally reviews books like this