I use plain vi quite a bit (normally emacs user) and it's pleasurable if you are (1) used to Ctrl-Z & fg on shell, (2) familiar with the Unix environment so tha

I use plain vi quite a bit (normally emacs user) and it's pleasurable if you are (1) used to Ctrl-Z & fg on shell, (2) familiar with the Unix environment so that you'll rely on its toolchain instead of plugins for edits and (edit: 3) have grasped to a good extent the verb-movement-object system.