I switched from Vim to Kakoune about two years ago, after nearly 20 years of vi / vim. Being essentially in visual mode all the time clicked for me very fast. Since I don't use plugins, there was nothing holding me back.
I still use vi / vim for some of the usual suspects. I haven't bothered to change my $EDITOR, so I always default into vi unless I explicitly invoke kak. (Like right now, w3m invoked vi for me to write this comment.) And then there's visudo, which is far too much of a pain to set up for using kak. And kak doesn't to my knowledge have anything like vimdiff. Also, it doesn't work as well for what I call "interactive sed," where you do a global regex replacement. For ordinary source code editing though, I'm not going back. Selection-oriented editing with multiple cursors is just too much fun.
I still use vi / vim for some of the usual suspects. I haven't bothered to change my $EDITOR, so I always default into vi unless I explicitly invoke kak. (Like right now, w3m invoked vi for me to write this comment.) And then there's visudo, which is far too much of a pain to set up for using kak. And kak doesn't to my knowledge have anything like vimdiff. Also, it doesn't work as well for what I call "interactive sed," where you do a global regex replacement. For ordinary source code editing though, I'm not going back. Selection-oriented editing with multiple cursors is just too much fun.