I also found that book incredibly interesting. I kept thinking that it must be full of lies and self-aggrandising hyperbole. If it is, at least it's very good lies and self-aggrandising hyperbole. Emotionally, I couldn't help but liking him after reading his book. I know he's had some questionable sexual conduct or worse, some of which he acknowledges in his book. I just hope it doesn't come up later that he has a string of silent rape victims like other once-loved celebrities.
My guess is that, any serious skeletons in his closet would have been at least partially exposed when he ran for governor.
He's also somewhat active in the fitness groups on Reddit, passing on tips and advice.