Readers looking for something substantive or even thought provoking will be thoroughly disappointed.
Regarding the substance of the book, from my perspective, I feel that the one requirement for a book like this is met. This would be enough structured advice and strategy to provide a startup founder with concepts to act upon, and improve their odds of success. As a founder myself, that's all I could want from a book, if I thought it would improve my odds by one half of a percent, I'd still buy it. All things considered, my greatest gains have been through the Lean community, not materials, but as an introduction, I'm inclined to believe that it's suffices for those new to the concept, and as a refresher, it's sufficient as well. (Again you are entitled to you're opinion, this is simply my differing perspective)
Regarding the pretentiousness of the author's grammar, I wasn't bothered and hadn't considered the implications of the capitalization or phrasing, due to my focus on the concepts inside book.