Overhyped
Okay, I admit, I didn't eat here at night, it was for lunch. But it was very, very touristic I could tell; as the wait staff didn't care to serve you. There are so many better places in Buenos Aires, and wonderful service that you shouldn't have to settle for this place. Plus, the lunch options are slim, sandwiches and stuff. I think you'll find in Buenos Aires they typically are very service oriented, and this place is too touristic to follow with the service.
I also don't know if the other reviewer got this place confused with another, because I can't see how there was any room for an open-pit B-B-Q. It sits in the middle of downtown on the main street between the Congreso and the Casa Rosada. It is a crowded street and the restaurants' door empties directly to the sidewalk. Inside it is packed with hardly any room. Perhaps at night they clear some space, but I can't see them setting an open-fire b-b-q pit in the place without the ventilation!