I've been using magit for years, and it's the reason I avoided giving the jujutsu VCS a try: the `jj` workflow/UI is supposedly much nicer than the `git` workflow/UI; but since I use magit more than bare `git` commands, that wasn't enough to sell me.
I finally gave it a try when I came across the majutsu package, which is a magit-like interface for jujutsu. I recommend it for Emacs/magit users wanting to try `jj`!
I really love the jjui TUI. For non-emacs users who want a great TUI for jj definitely check it out.