I watched this film, and recently read the book by Tamara, one of the film's producers. She discusses both Kris K and Guy, and they could not be more different. Then I went back and watched this film again and came away with a different view on Guy, as someone who was narcissistic, maybe a bit angry, especially when he says he wanted to write a hit song but couldn't "compromise his artistic integrity". I found that so telling. As a contrast, I think Paul Simon (to name one of very many) never compromised his "artistic integrity" as a songwriter and had, well you know the rest. Guy is a tragic figure of his own making, in my view. I wonder if he was too close to Townes, who was an incredible song writer with a very dark view on things.
Anyway, just my reaction.