Session detach was added 2+ years ago and tmux keybindings work out of the box. You can also remove any part of the UI you do not like and there are some pretty friendly built-in alternatives that take up less room.
That being said - use whichever software makes you happy. I'm just a stickler for facts. :)
That being said - use whichever software makes you happy. I'm just a stickler for facts. :)