Utterly fantastic theme on all levels. I've been using it since FF 3.6 and I don't see myself ever taking it out of an install, not even for the neat Personas which Mozilla introduced (though having a future compatibility with those would be a neat thing). For me though this is the only way to use Firefox since it works wonders for useability, utility, design/looks and just about any other area I can think of. (Secretly I wish Mozilla would make this a default alternative for installs in the future - its that essential in my opinion)
Huge, huge thanks.