This smooth and sexy lounge in Hayes Valley is just what you didn't need. These nice, educated, middle-class kids could use a little urban soul. Brass Tacks is all drab grey and black, catering to those for whom the colorful decorations of Sugar, a lounge around the corner, are too agitating. Brass Tacks is where cheesy guys go to pick up on bohemian women that are out of their league. It's pretty embarrassing to watch, so just do yourself a favor and don't.