The apartment is incredible! I wish I had 10 stars to gave to it, it's very well located, near to a LOT of restaurants and bars. We spend 2 two weeks, working from there - the internet is stable and worked just fine all the time. It has a very nice view, the kitchen is well equiped, it has chromecasts in both tvs and a super comfy bedroom.
Lucia met us at the check in and explained everything about the apartment and also gave us suggestions for our stay in Buenos Aires. We recommend their apartment for sure :)
Just a little ps.: it's possible to hear a little noise from the neighborhood, specially during weekend nights - the night in Buenos Aires is veryyyy fun! Nothing to worry, because the apartment has a good acoustic isolation, just be aware if you are a light sleeper!