The hotel is superbly located, one block from the Mall of Recoleta, and one block from the central cemetery with Evita's grave. It is affordable, the staff is helpful and speaks English. Breakfast comes to your room.
I had only one negative experience, but that was really bad. I told the staff three days in advance that I needed a cab to go to the airport. On the day of my departure, the cab did not come. After 30 minutes, I got nervous, and asked them to call another cab. They did, and that one came, but was 200 pesos more expensive. And, the trip to the airport took 80 minutes, not 45, as I was told. So leave plenty of time for your departure, and do not assume that a reserved cab will actually show up.