Overall - good (and I'm pretty critical of 'business insight / wisdom' books).
From the right perspective of expectation and context setting, this is a very strong work: It is for the small business entrepreneur, and comes from a foundational perspective assumption that they know nothing about selling their business / exiting. For a book like this, that's actually a good starting point and provides a framework for clarity and simplicity that makes this Good.
It's simple, direct, concise and lays out a four-part (phase/stage) blueprint that entrepreneurs should know, consider and operate within, when looking to a future acquisition or exit from their business. It is written for the Everyman reader, and readers can walk away with a simple list of two pages of notes outlining their own plan, to-do's, goals, and timeline that should give them structure and guidance on how to move forward.
That includes a short list of "how to build an exit team". This is essential and is repeatedly (but appropriately) emphasized by Coffey: there comes a time when you must hire experts to assist with your exit/sale. That's also huge advice for owners, who have typically become successful from their own sweat and expertise. Knowing when to garner outside help it key.
Overall a Good Read.