I run i3 and tmux. The biggest reason I do this is that I'm much more used to tmux key bindings rather than i3. Moreover, I don't think I'd get any huge benefit

I run i3 and tmux. The biggest reason I do this is that I'm much more used to tmux key bindings rather than i3. Moreover, I don't think I'd get any huge benefits by getting more used to i3 key bindings. Edit for another reason: I use Tmux on my work laptop (OSX) and on my Desktop (FreeBSD + i3), so my key bindings are supported on essentially whatever machine I'm on.