JetBrains Mono is a new monospace typeface designed to be comfortable to read. It has clear distinctions between the different letters and a relatively high x-height.
The installation instructions were tested on Debian, but they should work on any Linux distribution.
Download and unzip the font:
$ wget https://download.jetbrains.com/fonts/JetBrainsMono-1.0.0.zip
$ unzip JetBrainsMono-1.0.0.zip
Install the font to either the user’s font directory:
$ mv JetBrainsMono-*.ttf ~/.local/share/fonts/
or the system-wide one:
$ sudo mv JetBrainsMono-*.ttf /usr/share/fonts/
To use the font in gVim, set guifont accordingly in ~/.vimrc:
:set guifont=JetBrains Mono 13