We loved our stay in Silvina's apartment. It is located in the Congreso district of Buenos Aires. It is close to bus stops and a few blocks from the Congreso subway station. Silvina had provided two SUBE cards which we put money onto then "tapped" on the bus or subway - no looking for change or tickets. Within a two block radius there are several very good restaurants, a grocery store and a fruit and vegetable market. Silvina had left us a package of information about the restaurants she recommended. They were all good choices. We especially like her recommendation for the Cafe de los Angelitos for the dinner and Tango show. It included wine or beer and shuttle service to and from the cafe. The dinner was good and the show was captivating. The areas is bustling so it took us awhile to get used to the noise of city streets. Fortunately the apartment is on the 8th floor (with 2 good working elevators) so above most of the bustle. The security for the building is very good. You need a key to get into the building and there is a manned security desk just inside the entrance. Even walking the nearby streets we always felt secure. One of the police stations is only two blocks away and there are always young officers on foot patrol throughout the city.There is a charming balcony big enough for a bistro style table and chairs, some plants, and fairy lights. We made a small clothesline out there for our daily hand-washing. There are two laundrettes en route to the subway stop where you can drop off clothes and pick them up later. It is very easy to hail a cab in front of the building. Compared to Canadian cabs they are very reasonable priced but you might have to close your eyes once in a while. BA drivers are very aggressive here and get very close to other vehicles. Lane markings don't seem to be a factor. I don't recommend renting a car for the city for that reason and parking isn't easy.
The apartment is very comfortable for two people. The bed is good and two TVs meant my husband could watch sports in the living room and I could watch Netflix in the bedroom. The kitchen is small but has a full size refrigerator and small stove fine for a vacation. The tap water is good to drink. We were there in the hot summer month of January and it was wonderful to come back to a cool apartment. The AC in the living room moved about the apartment although there was a ceiling fan in the bedroom. If we ever make the long journey back to Buenos Aires we would definitely see if Silvina's place is available. It suited us perfectly.