I (mostly) really like South Side, with one exception. Only on weeknights in the early evening. All the complaints about bad service seem to occur on busier evenings - on a busy Saturday night the place is probably 2 stars. If you drive by and the parking lot is totally full, it's probably not worth it.
That said, the early evening staff seems to be much friendlier and better at actually caring about taking your order. The food here is really very tasty and they have some of my favorite cocktails in town. My favorites on the menu are the appetizers/small plates - chicken enchiladas, mozzarella moons, calamari - all so good. I like the enclosed patio with the fireplace - it is a little quieter back there. The bar is also ENORMOUS and perfect for watching a game or having a quick drink.
Come for an early dinner. Unfortunately, I think it's a pass for late-night drinking .