Having watched the first four seasons as they aired, I tuned out season five after the second or third episode because the violence was just so gratuitous and over the top, and there were so many unappealing characters. Some of them were so uncomfortable and unpleasant to watch, it was like watching a caricature of a freak show. Also, the violent scenes of Ava in prison were just too depressing.
Season six was better, especially the final three or four episodes. Last night's finale not only gave us closure, it showed us the characters' humanity, and gave them some dignity.
I think the show ended at the right time and on a positive note. I'll miss Raylan, his boss (the chief Marshal), Ava and and Winona. The others, including Boyd Crowder, not so much. Killing off Dewey early in the season made the show much more watchable, but I couldn't have taken any more of Duffy the snake or Boon the psychopath. As for Kentucky, it's certainly not on my list of places to revisit -- the show made it about as appealing as Homeland made Pakistan.