I stayed in the apartment for 2 weeks for a workation, it was a wonderful experience.
It is very close to a subway stop (green line), that goes to city center and a bus stop.
Apartment is full of light, very clean. It has all necessary for cooking. The bed is comfy. AC works. My favorite place was a little balcony.
Hosts are very attentive.
The only thing to know that it is not very soundproof, and you can hear neighbors a lot. But it was the same with all the apartments I stayed at Buenos Aires.
There is a very local, simple but good place to eat around the corner - Estudio Bar. Meat + pure or salad was $4.
Good coffee - Osvaldo cafe (same block) and Arredondo (this one is also a restaurant and bar after midday; situated in an old mansion).
Traditional ice cream place with lots of history - Furchi Artesanal.
Take a walk to La Mezzetta, a legendary pizza place. It looks like a hole in the wall, but is one of the best places in the city to try local pizza, especially fugazzeta