The apartment is located in a super safe and chill area (it's Balvanera but just on the border to Recoleta), where you can find a looot of great shops and restaurants.
The apartment is great, with a cooling structure that I think is much appreciated during summer time (high ceiling, not exposed to sun, etc). The room itself was just lovely, with the most comfortable bed I've slept in yet, TV, a small desk to work at, and just a nicely decorated and fresh room in general.
Sergio is a true super host, doing all in his power to make your stay pleasant! He was super attentive to all that I needed and did me some real solid favors like helping me activate my local SIM card, paying for my taxi when I had no way of paying, helping me exchange my dollars, and so much. Apart from all that, Sergio is just a great guy in general and we had a lot of fun discussions, making me feel at home in a totally new and big city.
I'm super happy with everything and I recommend a stay here to everyone!