Review: The author, Msulcs (OP jefis), is a proven marketer and entrepreneur. In addition to dominate marketing as an Amazon Affiliate for several years.
The book goes through important tactics that will be usefull for you, even as a advanced marketer, helping you understand the tips and tricks that this system means to be succesfull and wich took him several months if not years to get it clear.
So is it worth it? Yes, and it means a huge short cut to knowledge in this topic.
The book is well-referenced, with examples, making skillful use of first-person sources and examples.
What could be improved? Maybe keeping updates to Reddits terms changing all the time, but even that, OP promises to keep you updated, so it's worth it.