This book by a former sannyasin's only value seems to be that it paints a portrait of one of many immature seekers flocking to the mystic Osho (aka Bhagwan Shree Rajneesh) in the 70s. Underlining the fact that Osho was perhaps the first master to give unconditional sannyas to everyone interested without requiering any preparations or qualifications from the aspirant.
Which ofc meant that many sannyasins did not realize that the initiation was only preliminary and that true sannyas required an inner revolution. Therefore we got people like Boerner whose main interest was having sex with as many females as possible. In his case without much love and often a strong element of violence, he seemed to like hitting his women. And imagining themselves enlightened just because of some passing experience in a therapy group.
Besides of that Boerner openly states that he had no real interest in Osho, sleeping through his discourses and never taking the opportunity to have a personal conversation with the master. And when recommended to do a meditation group spending his time trying to sabotage it.
And then he rose to money and fame making a porn movie starring sannyasins....