Duong's Restaurant is a Vietnamese restaurant on the alley where 4P's is located in Hanoi. The Traditional Set includes a choice of cha ca or bun cha as the main, followed by pho and dessert as a course. On a weekday lunch, seating was available without a reservation, and the three-floor space is larger than it appears from outside, with staff who help with ordering in English. Service is inconsistent: food arrived more than 30 minutes late and seating was changed.