Update: I loved the book, and I recommend it. I haven't become a panpsychist, but that's not entirely the point. What matters is engaging with the merits of the theory, and exploring an alternative viewpoint. That's the only way to grow as a thinker. Granting a few premises, panpsychism seems plausible, or at the very least "not crazy". I have quite a few objections, but I appreciate the honest focus given to the theory's limitations.
The prose is excellent; Goff is a talented writer. The last chapter (my favorite) is dedicated to the implications of the panpsychist framework. I might not think panpsychism is true, but I find the paradigm shift it entails desirable.