It works, and well! Rated 4 out of 5 stars

Stylish is another example of how the web is not under the control of
the content providers. Stylish is subversive and does it with flair.

As someone who writes CSS everyday, I cringe when I see certain
websites. Other websites are good, but have minor annoyances.
Stylish lets me fix these. I use it to fix some spacing and font
size issues in Bloglines. I use it for certain intraweb sites that
are designed for IE users.

Stylish is great; I don't leave home(page) without it.

Ciao!

This review is for a previous version of the add-on (0.4).