People are a little harsh on this review. I think the Harp is a great place. It actually turned me on to corned beef (something I previously hated). For real, the cored beef is excellent.
The boxty is good too, I do get upset that they don't have a boxty appitizer. The side order of boxty does not cut it, they need some crisp boxty slices for an ap!! Do you hear me Harp? You lose a star for that.
The patio is nice and contrary to a previous review, they do have traditional Irish bands. This is in the evening, appearantly not for lunch.
Either way, The Harp is worth a shot.