I stayed at Sandra's place for over a week. It is new and modern, everything works well and is comfortable. It is a walking distance from most of touristic attractions and 1 street away from San Telmo Sunday market. Easy to access with metro too. There is a common space at the rooftop of the building where it is possible to work remotely (I have seen some people doing that). The swimming pool is a bliss especially after a long flight. The street is quiet and safe and overall I would recommend to stay there. Sandra is a very friendly, responsive and kind host. O! and apartment had all necessary things like soup, shower gel, some cleaning products , lots of towels, pillows etc. The only downside was a view from the window - there is ongoing construction side (the noise was not a problem- the window blocked it and it was not much at all) and air pollution felt a lot in this part of a city, which is not something a host can influence and a price of being central