I give it 3.5 stars because it was everything a celebrity memoir should be: young person from small town hits it big in Hollywood, loses their sense of identity, then rises from the ashes like a phoenix to becomes successful on their own terms.
Judgement aside, I have heard Hef's version and read Holly's version and expect the truth to be somewhere in the middle. I think she, like so many women before her, was addicted to the lifestyle and did not understand she had hit rock bottom until she had lost every single freedom she had. I also doubt her journey to success was quite as easy as she painted it. The Playboy mansion was probably not quite as bad as she said, and her rediscovery was not as perfect as she wished, but fudging in a memoir is a long and honored tradition.
I am happy for her that she is happy now with a baby and a husband, and her club in Las Vegas.