I do exactly this. Systemd starts my emacs-server on login and shuts it down on logoff. From then I use only emacsclient -c (opens in a new window) or emacsclient -t (uses the current terminal), the latter beeing my $EDITOR. Of course I have aliases for both (emax and emats). Those open a file instantly (or fast enough that it feels like instant).
I should perhaps do a blog post about my setup?
