I have lived in NK for 28 years and have eaten at Duffy's twice with years in between. Both times have been uneventful food and service wise, but definitely not something to ever go back for. Duffy's is a long established institution in town that many folks will always go too just because its old. But in all honesty they have never established with me or anyone else I know a truly signature dish that people rave about. Their dinners are just ok, as are their burgers and seafood. Nothing is delicious or the best you ever had. About all I can say for Duffy's is that it has a cool name, and is not a bad place to go to once..