TERRIFIC !!!!  My husband and I, along with our son and daughter-in-law, driving home from a trip to Cleveland, decided to stop in Pittsburg for lunch.  My son remembered seeing a place on Diners Drive-Ins and Dives that was to die for... so, we looked up the address and made a bee-line for Nadines.  TOTALLY worth the trip!!! Even better that we bargained for! The physical location was as described by previous reviewers and shown on DDD, not much to look at, small, etc... but WOW the food shines and the friendliness and service of the staff is FIRST RATE.  Each of us ordered something different so that we could sample each others fare.  We couldn't decide on what to vote the best dish because they were all DELICIOUS!  The burger was amazing, perfectly cooked, juicy and abundant, the Fried Bologna was killer, the grilled hot dog was incredible.  The Reuben was outstanding... Nadines perfectly sliced meat (razor thin) tasted so very good with the perfect amount of sauerkraut and dressing... can't say enough about it.  The Philly Steak was amazing along with the Fried Zucchini.  Guy Fieri was right on the mark with this one... OUTSTANDING and worth a visit.  Oh, and did I mention how incredibly reasonable the prices are... love it.