At least at my screen size, the new white header bar looks gigantic and takes up like at least 30% more of the browser page than it should. Also, it removed a cuztomizable element from our wiki that I actually really liked :C
Mostly though, it kind of stresses me out that I've lost some of my viewing space on articles, especially since they also recently increased the default font size. Hnnng.
Anybody else feel this way?