Rated 5 out of 5 stars

Cool tiny stripes! Nice gray theme! If you have a gray gtk appearance ;)

Rated 4 out of 5 stars

Really nice dark theme. With new slimmer Firefox 4 UI Personas themes presents much nicer than previously. Though themes are very similar ;)

As I said it's nice - just background of - for example - bookmarks and add-on toolbar (and similar) are bit too dark in my opinion.