This is a great place. It is located in Recoleta, a nice centrally located neighborhood. The apartment is close to beautiful parks (just 2 blocks away), the old Recoleta cemetery (an old gem in the city), restaurants, and public transportation. There is a good coffee shop across the street that serves really good breakfast. And in the corner, there is another pastries place. Three blocks away there is a street with a few bars and restaurants and a mall.
The apartment has a washing machine but I'm a bit lazy so I took my clothes to a wash and fold one block away (super cheap and they have it ready for you the same day), which was super convenient. There are supermarkets and pharmacies within walking distance. The neighborhood is safe and much quieter than Palermo, which is another trendy neighborhood with plenty of cool restaurants but too noisy and busy for my taste.
The main bedroom has a nice queen size bed with a big window overlooking a bunch of trees. There is plenty of storage, extra linens, many towels, an iron, hairdryer, toaster, microwave, and an oven with an electrical range. In the living room, there is a couch, chairs, a big table, and a smart TV with access to Apple TV+, Netflix, etc. The wifi is good. While I was there I had several Zoom meetings without a glitch. There is also a nice balcony where you can sit down and have a coffee or a beer.
An important feature for me was the bathroom. In many apartment buildings in Argentina hot water can be a problem (usually because of a small individual water heater). Not so here. Great water pressure and hot water (centrally provided by the building, just wait a couple of minutes after opening the faucet).
Check-in and check-out went perfectly. The guy that owns the place is super accommodating and always responded to my inquiries right away. Overall a great experience. I will certainly come back the next time I'm in Bueno Aires.