Yeah, I don't know him personally, it's as much guesswork for me as it is for you.
I've not seen him with SOA, so can't comment on that, but I've seen him several times with DT and he seemed to have a lot of fun. And I've seen him with Billy Idol and he also seemed to have a lot of fun there, even if he was clearly a criminally underused sidemen.
And I've read interviews for his solo records, where he was very humble and had nothing but praise for all the musicians he worked with.
His actions at the start of SOA were questionable, but I still think that he doesn't seem to be a jerk to me.