I went to my GP for an eating disorder and over the many months of therapy. I was finally diagnosed with BDP, as I met 5 of the 9 diagnostic criteria. In the sense that I get easily paranoid, fluctuating emotions, self harm, Bulimia etc. On the whole I found diagnosis beneficial as it allowed me to explore and understand some of the quirky aspects of my behaviour. And, some of the more awkward aspects. I am happily married, have an extremely successful career, and a wide circle of friends.
HOWEVER, according to this book I should behave like a psychopath, arguing, being abusive, having stalkerish tendencies, etc. Moreorless Glenn Close in Fatal Attraction. The BDP described in this book is the exact opposite of me. Apparently with the criteria being so broad, there can be at around 250 different types of BDP. This book does not give a generalised view at all. It merely picks up on the more egregious aspects of the mood disorder, and glamourises the worst aspects of it. The most odious sections, are 'How to leave people with BDP?'.
This is a dreadful book. If you have BDP, or have a family member with it, buy 'Lost in the Mirror' it is a far better text. Also, for anyone outside of the USA, this book will of little use. As it makes reference to US laws etc. It advises you not to be open and honest, whereas in the UK with our Equality Laws, I have found being open and honest integral to my treatment. On the whole this book stigmatises people. Steer clear of it.