The apartment is exactly as it appears in the photos. The unit was clean and well appointed. The small flat screen TV had HBO and a few other channels in English and lots of channels in Spanish. The three air-conditioners had remote controls and worked very well and were quiet. All the appliances were newer and worked well. There is a small pool/sundeck on the roof that is only for the unit and Carlos use. There are only two units on the third floor, Carlos' and the rental unit. There is an elevator to the third floor, and stairs to the roof top pool/sundeck.
Carlos is a fantastic host and was very helpful to us on many occasions. He goes above and beyond to make your stay enjoyable.
The neighborhood and the building is safe and secure. We felt comfortable even at night walking home from local restaurants or the subway stops. There is noisy traffic and barking dogs, but that seems to be the norm in Buenos Aires. Our favorite neighborhood Parilla (steakhouse) is "El Patio", on Aguirre, about two blocks from the unit. It is about 10-15 minutes walk to two SUBE (subway) stops and Carlos provides a card you easily top up at the stops or local stores.