My husband and I rented this apartment from Marcos and stayed there with my parents for 4 nights. Marcos was very helpful getting us checked in, and provided us with lots of recommendations for nearby restaurants and how to navigate the subway system.
The apartment was exactly as listed, very clean and comfortable. The bedrooms are large and it has two bathrooms, so very well suited for 4 guests. We also enjoyed using the gym in the building with great views of the city. Location was good, a short walk to many restaurants in Palermo Soho and to the subway. There were also several grocery stores and produce markets very close by.
I would definitely recommend Marco's apartment to others visiting Buenos Aires!