We spent 35 days in Buenos Aires. Natali and her family were very very helpful. I needed to have an eye exam and see a doctor for medical prescriptions. They helped me with both requests.
The apartment is basic but it has all you need. It is very well located for sightseeing. The subway is very close. The ATM was two blocks away. There are many cafes in the area and the mercado is two blocks away.
What more do you need?