I tried this at some point and recommended it to a couple people in the past. I liked the convenient interface, though I remember having an issue with my address breaking at an inconvenient location and there was no apparent way to fix it.

I eventually hacked together a solution using Handlebars and PhantomJS, which isn't as convenient as Resumonk, but it gave me the stylistic control I wanted without having to learn LaTeX. https://github.com/skofo/resume