tmux adds more structure to windows, panes, layouts,.... which is not necessarily a good thing in the sense that you can't easily build an arbitrary layout fro

tmux adds more structure to windows, panes, layouts,.... which is not necessarily a good thing in the sense that you can't easily build an arbitrary layout from another arbitrary one. It all depends on your workflow, but tmux can't emulate the completely freestyle layouts of screen. On the plus side, tmux has plugins that allow pretty sophisticated interactions (more than tmux)