I just returned from 10 days in BA (and Colonia, and a side trip to the estancia El Ombu). . .and the following are my jet lagged recollections. As Jonathon mentioned, Sucre is wonderful. Also worthwhile is its sister restaurant, Gran Bar Danzon (located in Barrio Norte/Recolata neighborhood)--although it notably lacks the suckling pig. Had a lovely starter of "spring rolls" with pulled pork, and a memorable lovely dessert of dulce de leche creme brulee. (to be completely honest, the main escapes me...I assume I had steak!!). Also, a lovely malbec--Anubis 2002. Cabana Las Lilas was good, although I'm not much of a fan of Puerto Madero--seems to lack a lot of charm. Nevertheless, the starter "snack" was a favorite there. For cheap eats (kind of a joke, since the exchange rate for americans is so good), Pizzeria Guerrin was great. Excellent empanadas, good pizza, great tortilla. Has stand up service in the front, table service in the back. We ate twice at La Biela, a cafe near our hotel (Plaza Francia Hotel...very helpful staff, clean decent rooms), near the Recolata. Its apparently the big cafe in BA, but we found that one should stick to drinks, not the foods. The same is true of its neighbor, the slightly less popular Cafe Paix. We ate mainly in Palermo, as that seems to be the "more happening" restaurant scene. Club de Vino was a fun place--combination wine museum, theater and restaurant all housed in the same facility. Had some excellent rabbit there. Something called "Cabernet" (also in Palermo) was a lovely, romantic spot. Food was charming. And Oveido was a favorite early on--very old school service, and the clientele was definitely older. Not a hip spot, is my guess, but a classic one. But by far, our best meal was at the estancia--el ombu. What a wonderful time--a wood burning stove in each room, riding horses (well, walking them in my case since I'm a novice) during the day, and building up an appetite for lunch...good thing. Lunch is a mult-course affair, with each course consisting of wonderful free range argentinean beef from the estancia. It was like a joke--each time a server entered the room, they had another platter filled with cuts of beef. (Its an interesting platter, I don't know the name, but it contains charcoal briquets underneath which continue to cook the food as served). And no lie, there were 6 or seven "courses" of beef. Even though I was full, the carne empandas were the best I've ever had--so soft they fell apart in your mouth. If you are planning a side jaunt to Colonia, the sights, not the food should be your focus. There is an excellent parilla (I don't know spanish--the translation seems to be "restaurant that only serves beef") near the water--its very colorful (red and blue and yellow, and stands out in this small town. Be warned that ordering the "mixed grill" will not get you a platter of beef, chicken and veggies...it means "mixed parts of the cow." Lovers of offal will enjoy. Hope this is helpful. I'm sure you will have an amazing time.