This book has quite some bad reviews. Interestingly the author seems to be on to something with his analysis of the stereotypical nice guy and his traits. At least for myself I recognized some of those traits and have actually had real problems with them in the past. I don't know if the reasons he gives are accurate in my case, like a deep inherently bad feeling of shame or deficiencies in the relation to the parents. Nevertheless it raises the awareness of those traits and how they can be objectively bad for you ( not only if you are a man ). Addressing them in a systematic manner seems to be a good idea. I refrain from the notion of the need of a therapy though. I think that this is probably going too far.