Well, if you visit this site you can see that the font and it's size is just crap, I can't read that. Well, unfortunately for me, the extension button does not work in this site. After updating to 0.35 it worked for a while and then stopped working again.
Even when it worked I had trouble saving a style created by me. Each time I saved, I reload the page (or another post) and the small text was back. (and even see two clones of the same saved css O_o)