Mirian and her son were always very helpful with my questions and made sure I was alright. The apartment is in an university neighbourhood, I felt always safe. In the apartment you are above things, on the 9th floor with large windows. To me personally the traffic noise was quite annoying. And I didn´t like the music taste of my neighbours - but I guess that´s the southamerican way of life and I´m european. ;-)
The kitchen is well equipped with all you need and don´t want to buy for a couple of days (like spices, oil, coffee, detergent) and the hot shower is great (if there is hot water; during my 5-week-stay the administration cut it at least once a week for a day). Also helpful is that there´s already a bip!-card (for the metro and busses) in the flat which you only have to charge. I can recommend staying in this place.