Comely ladies, accommodating bar staff, sharp-looking men, and a charming atmosphere are the ingredients necessary for beguiling a client. And the Merc Bar is just classy enough to show that you have taste, but cozy enough to avoid pretension. You can call it a refined hole in the wall. And Troy, the energetic general manager, will even make you his specialty, Caipirinha, which earned last year's Best Cocktail award from New Times.