Visited its page to have a look... I'm not sure why they'd put a screenshot with a variable width font, which automatically puts lots of people off when it comes to coding...
It's like having a screenshot of your bitmap editor, and showing it editing goatse.cx...
In fact, after reading you comment, I promptly startet to install it (still compiling as I type this). My use-case is creative writing: I'm very used to vim keybindings from coding, but prefer to have a variable-width fonts for writing.
Sorry about the confusion -- I think you've already discovered that (after 46 minutes)!
Aha, looked like a proportional font was used to me. I'd use a more well designed monospace font for the first impression!