It has the "feel" of a DOS program. I'm not saying that's a bad thing, just that it feels a bit alien on UNIX.

The first UNIX system I learned on had pico, the editor nano was modeled after. I personally found it intuitive enough, but too simple in the long run. Editors like nano or DOS EDIT are great for light use, but you reach their limitations pretty fast if you do a lot of serious editing.