Juan and his family are great hosts. Upon arrival they provided me with a bike (which is possibly the most convenient means of transportation in Buenos Aires). They invited me several times to join them for lunch or dinner and were actively helping me with figuring out what to see and do in the city. They made me feel at home right away. And I definitely recommend staying at Juan's house if you are in Buenos Aires.
The house looks exactly like it is in the photos. The rooms are private and have their own bathroom and a shared kitchen as well as a laundry room. There's a rooftop patio were you can catch some sun rays and relax. At the time I was the only one staying here and had the house completely to myself. The house is attached to that of Juan's parents, who are extremely kind and helpful.
The location is nice and quiet. It felt like a safe neighborhood as I cycled through it at any time of the day without feeling uncomfortable at any moment. It's not extremely close to central neighborhoods like Palermo, but keep in mind that Buenos Aires is huge, even when you are in the center, every location that you might want to visit is still far. At night there's hardly any traffic outside the center towards the West and that offers a convenient bike ride home of maybe half an hour