Vim allows you to edit text at high speed due to muscle memory. This means you don't have to lose your flow when coding. It is also universally available on all Linux/Unix systems.

Vim is a great terminal based text editor. Though it has a bit of a steep learning curve for beginners, it has a lot of useful features once you learn it. The best trick about vim that I like (and probably wouldn't use without) is holding Alt with my thumb to use normal mode without hitting escape. I edit most of my small projects using Vim since it's fast and I can move around, modify, delete, search, and move things without ever leaving home row.

Vim is very easy to use, and provides the user with many options to customize their user experience. There are many editor commands that allow the user to easily navigate through their document. It is also an extremely lightweight editor, ensuring that the user does not experience lag when viewing or editing their document.