Good Lord, the first 100 pages were boring as all can be. Later the book opened up and I began to see the narcissistic patterns of behavior, including some of my own behaviours that are grounded in early narcissistic wounding. This book is very helpful in undertanding this type of personality regardless of whether or not you're a therapist or just a person trying to understand yourself or even how your fellow humans (some of them - most of them, in fact) operate.
It is NOT an easy read. It is painstakingly detailed and explains Kohut's and Jung's respective therories of the narcissistic self. Probably not a layman's read, but interesting nonetheless.