I'm still really loving using Input Sans, a proportional font, with #Emacs. I keep butting my head against the places it doesn't work well (aligning continuation lines with spaces, org-mode tables, company-mode popups), but on the whole it's so much more pleasant to have this font. And I think the main thing about it is that it feels more humane because it's proportional, but it doesn't feel too out of place because it's not *too* proportional.