I love that the UI can be explored by the user, since it shows available keyboard shortcuts. This is something where GNU screen or tmux suck, because you really have to lookup how to operate these tools. In some manual or with google.
Yes, I think more than "written in Rust", what is attractive about these tools (and other Unix replacements like Ripgrep, FZF) is more their attitude of "we have a lot more computing power and higher resolution/larger screens now. let's have saner defaults, intuitive UIs or larger search spaces (in case of FZF) to actually take advantage of that."
I will say that one aspect of "written in Rust" is the combination of a high performance language (giving more head room for adding features) and a great packaging story (so you can build on the shoulders of giants, like burntsushi, author of ripgrep).
ctrl-w is a very commonly used key to control vim windows. How do you manage with that? I have my tmux leader key mapped to ctrl-z as we hardly use it these days.
