I'm a newbie to BA, but I have lived in California, NYC. I've eaten at some amazing restaurants and this place is among them. A very memorable Baby-beef steak, great appetizers, wine. The place is busy, some tourists, some locals, and is not overly fancy but nice. It was recommended in my Lonely Planet Guide. Its the kind of place where you could have a business meeting, or meet a friend, without being stuffy. My meal ran about 100 pesos. I'm going back there again tonight. I'm sure you can find cheaper but I don't know if your find much better. Anyway, I enjoyed it and just wanted to post the with the board.

Corner of Chile and Peru