Gullifty's is a very cute local establishment, with all sorts of specials and gimmicks that change from day to day. On nights when the Penguins are playing, for example, they usually have cheap wings and Yuengs. The fully-stocked bar is great for meeting up with a friend, or you can go to the much larger (and better-lit) restaurant area with larger parties.
I wouldn't say the food is amazing, but it's pretty decent, and they have such a varied menu that everyone is sure to find something they like. The same thing goes for their desserts--pretty good, but the variety is the main attraction. I do like the drinks, though! The bartender is always accommodating, and will try to make whatever it is you have a fancy for (even if that's a spiked milkshake).