Maybe. Its probably very subjective.

I’ve tried working with tmux, and I don’t like the way it handles creation of ad-hoc terminals (complicated shortcuts to create, move between, and figure out where you are). Panes in the same window are easier to handle, but that means that (a) you have to basically order them manually (decide each time if you want a new vertical or horizontal pane, and where you are willing to sacrifice the screen real estate) and (b) you can quickly run out of screen space. Its tabs for me all the way 🙂