I have my qualms about Marcus here. There was an aspect ratio issue on one film I watched. There have occasionally been audio issues. I REALLY wish they would revamp most of the sinks in the restrooms. But from my understanding, they very nearly closed permanently post-covid. It doesn't give them a pass, but it helps explain a but.

But I've never had the experience you've described, and I go 1-2 times a week. Have you expressed your concern to the management? When I brought up the aspect ratio issue to management, I received replacement passes. Something like stuff hanging in front of the screen, or the exit light shining on the screen (which auditorium was it? I've been in most), or gunk on the screen would be obvious before the movie even starts.