We were in search of lunch when we were at the Pentagon City Shopping Center and found Sine Irish Pub & Restaurant nearby. We enjoyed the atmosphere and friendly service -- the host even took time to give us tips on the area when he saw us looking at a map. On the first visit we enjoyed the ribs, fish & chips and the Guinness stew -- all good portions and very tasty. We returned for dinner a couple of weeks later and were treated with a feast of Shepard's pie, corned beef and cabbage plus a repeat of the Guinness stew since it was so good. They serve great bread as well. Service was efficient, attentive but not over bearing. We felt the meals were good value -- in the range of $10 to $13 each. It is not a quiet dining experience -- it is obviously enjoyed by the local office workers and military folks. We had a booth both times and weren't bothered by the noise. Worth going to if you are in the area.