While that might be true, I do take it as a dis-advantage that the frameworks can't be easily overridden. I can just imagine the wasted minutes now, setting a font on the page only to watch it not change and wondering why pure would pick such specificity only to set the font to sans-serif. Imagine if they'd done that with the other bits? Made the styling so specific that you couldn't easily style on top of it.

Also I believe that Pure doesn't do the whole configure-with-sass thing -- though it can be customized, it's CSS only (https://github.com/yahoo/pure).

I wasn't aware of this shortcoming of Pure (maybe because I haven't used so many custom fonts), but I'm going to be keeping it in mind for the future.