At lunchtime, businesspeople looking to impress clients fill this opulent 400-seat outpost of upmarket Cantonese cooking, which serves an extraordinary selection of dim sum. At dinnertime, fresh seafood from the restaurant's own tanks, crackly-skin Peking duck, a memorable chicken salad, and various exotica -- bird's nest, crab roe, shark fin -- are among the most popular requests from the loyal customers who frequent this branch of a Hong Kong establishment. A few private dining rooms, complete with mah-jongg tables, are used by banqueters. Validated parking is available at the Embarcadero Center Garage. Reservations essential.