You can get all their brews on tap, including seasonal specials, at Ballast Point. To tell the truth, it's happy hour all day long at Ballast Point.
We usually go to the Little Italy location since we like to spend our weekends walking around Little Italy and down to the Embarcadero. The menu is the creation of a Le Cordon Bleu-trained chef, so anything you order is going to be good. Sit inside at one of the tables that line the windows for some great people-watching. This place always seems crowded, so get here early.