Hi,
sorry for the late reply.
The book was recommended to me by my first therapist. (I was in dire need of help, spiraling down into a clincal depression) She felt that my mother was probably borderline also-- like yours.
One of my sister's went out and bought the book and after she read it, I read it.
We couldn't believe how someone could write about our mother without ever meeting her!!!

She is textbook Borderline-- even down to the impulsiveness-- she shoplifts.
The book helped to free me a little from the shame and self-loathing that my mother instilled in me from the moment I was born.

I agree with Rapunzel-- the book is more for loved ones that deal with a Borderline than for the Borderline themself.(IMO)
It was worth reading for me.
Good luck to you.
mandy
edited-- for typo's-- oops!!