Yep. Super useful. I figured it out only recently! I ssh into many servers with IP addresses and weird hostnames. Now I add #server-description at the end of the command and I can get back to it instantly.
I prefer to use a short memorable name as an alias in `~/.ssh/config`, so with keys set up properly ànd a suitable alias in .zshrc I can connect with 4-6 keystrokes, and take full advantage of zsh's auto-completion across hosts (way better than in bash).
