Barb's is legit. It's exactly what I'm looking for in a diner. It's inexpensive, the food is good and a little sloppy, and the menu has everything I'd want for a quick breakfast. The country fried steak, biscuits and gravy, corned beef hash, and pancakes are all great.
It's not the best breakfast spot in the city, but it's worth your time and your wallet and your stomach will be happy.