It's a rather boring film with a terrible ending.

Rating: 6/10 (24 December 2019)

The performance by Phoenix is excellent, and it's really all this film is about. The message is subjective, as the actor has noted. That said, it's really not that great, drags a bit toward the end, and ends with a thud.
It has its moments, but by the end of it, you sort of find Joker to be a bit of a loser . You wonder if all of that was worth two hours of your time.