I've tried to switch to tmux a few times over the years, but the command line options and keybindings never stick in my brain. My fingers keep wanting to use the screen options. So, I always go back. I probably should just figure out how to make screen do what I want (scrolling back in history is probably the biggest one, and I know I had figured it out in the past...but my current systems don't have it working, I don't think, or I don't remember the incantation to do it). I wish screen worked more like a normal terminal session, is what I'm trying to say, and tmux seems to be closer to that ideal without configuration or learning new ways to do things. But, my muscle memory wants screen.