I cannot recommend this place and host enough. I'm Argentinian but I live in Ireland, and I was coming to stay in Buenos Aires for a few days to visit. Juan was the sweetest, most welcoming host I came across.
The location is great, very secure area and very well connected to local restaurants. It's only 15 min from Plaza Serrano and other famous spots.
The apartment was very clean, with the most amazing balcony. I loved this place.