I used to date a roadie for Weird Al. He puts on an awesome show and he is a really great guy with his crew - for real.
It's one thing for a performer to be seen as a great guy by fans and journalists. Being seen as a great guy by fans and journalists is practically a job requirement. But when he's seen as a great guy by the roadies, the woman who takes care of his costumes, the girl manning the merch booth, the writer on his tv show, the fan extras on a video, the venue manager, the manager of the hotel where he stays on vacation (and I've seen all of these), then the conclusion becomes inescapable... he really is a great guy.