I had portuguese chicken, rice and potatoes from a place on Dupont street the other day and it just sucked. Maybe I'm spoiled because I live 2 minutes away from this place and have been eating here forever, but this place is the best. Their chickens are big AND juicy! A leg off one of their chickens actually yields enough meat to feed you, unlike most places in the City.
Mmm, I also love the little shrimps in their rice and their potatoes are fried and firm -- perfect for dipping in their hot sauce (which I could drink by the gallon!) and their fish fillets and fish cakes are also very good. Those portuguese sure know how to make some fish alright. They also have a small selection of buns and loaves of bread (sometimes too crusty for my liking)
Line ups are common around Dinner time (be patient) and they close earlyish...I think at 7:30-8? because they're open pretty early.