The Finn and Porter Restaurant in the new Embassy Suites Convention Center Hotel has what I think might be the best sushi in town. A huge platter of combination platter of California rolls and very fresh sashimi for about $22 is a great deal. They also have a good American seafood menu. A large appetizer of tender, crispy squid for about $8 is sufficient for a meal. It's on 10th ST. NW about three blocks up from Penn.