We had a fantastic stay at Carlo's apartment. We didn't meet him in person, but he was always very attentive in answering our questions and had some great tips like where to exchange money for a good exchange rate. The apartment itself is amazing and felt like a second home away from home. It has everything you need, from two balconies (one to sit outside for coffee or a glas of wine, the other with the jacuzzi), two big bathrooms, fast internet, a very comfy couch and even four options to prepare your coffee. We were also very happy that is has two separate ACs on both floors, after it good quite hot during our stay in Buenos Aires. Additionally the location is great, you only walk a few steps to the next small supermarket and only a few minutes to great restaurants (e.g. Don Julio is only 3min away) and other shops. So in summary: we definitely want to come back :-)