My experience in Buenos Aires was really short but amazing and very comfortable thankful to Maria Eugenia and her mom! They picked me up at the airport and we did a fast but very good tour of the city to see the main spot and neighbourhood.
The apartment is very comfortable and located in an excellent position to visit the main monument; the neighbourhood is lively and full of people during the day, and safe during the night also. Near to the new and modern Puerto Madero, to the Casa Rosada and five minutes walking from the main streets of Buenos Aires.
I very recommend the guided tour during the day, that give you the opportunity to visit lots of places and to enjoy the company of two very kind people.