Seen PT live a number of times, met him a couple times, and even got to open up for him in...'89... or '90?
The first night I got to meet him in '87, he was drunk and being, sort-of, an ass. I met him again a couple nights later (I'd arranged these through his tour manager) and I swear he didn't remember me from the previous night. We met in his tour RV and he signed my Makin Magic record, which he thought was cool because it was a German import version.
Anyway...in recent live footage I've seen in interviews he seems like he really has his shit together. He's sober and also talks about anxiety issues he used to have that he's overcome. Good stuff. I keep an eye on his tour schedule, would like to see him live again.