This book would make a reasonably interesting essay, but it doesn't really have enough content for a book. Essentially, what it says is that in addition to designing for usability, people should design for affect and emotion, engaging people at the visceral (reptilian, sensation-based), behavioral (mammalian, use-based), and reflective (human, intellect-based) levels.

It says all that in the prologue, but then doesn't really expand much in the rest of the book. For all I know, such hackneyed examples as Csikszentmihalyi's flow, passwords posted on computer monitors, the questioning AI called Eliza, and Asimov's laws of robotics may have been less banal over a decade ago when the book was written, but by now much of the content was so commonplace that the analysis of it conveyed little information.

I recommend reading the prologue and skipping the rest.