This being written in Go is a huge positive. I am curious - if I can alias SSH to force this down the pipe to wherever I'm SSH'ing to, that's a huge adoption benefit.
Mosh also kind of works like this but can’t recall if you technically need the software already installed at the other end. Sshuttle definitely doesn’t.
It's an extra step, plus typing lag, plus my support tools needed by my vim plug-ins won't be there, et c.