I stayed in Diego's place for 2 months. I originally planned to stay for 1 month, but then extended it. The main reason for staying longer is because it can be hard to find a quiet place to stay in Buenos Aires. For the most part, Diego's place was quiet.
The neighbor has a dog that barks from excitement every time it goes out for a walk, the lady that lives next door can get excited when gossiping with a friend on the phone, and the elevator is ancient and makes a horrible sound when it stops upon descent. Besides those noise sources, there is no noise from the road and the apartment looks down upon a quiet courtyard.
I loved the colors of the apartment. Much better than the bland white that all Airbnb apartments have in Latin America.
The internet was fast, and the Netflix was nice.
There is great hot water in the shower and kitchen.
The cooking utensils are old and could definitely use an upgrade. If you are only planning on eating out, not a problem. If you are planning on cooking a lot, could be a problem.
In regards to the locations, fantastic. Half a block from a metro station. 2 blocks from the Recoleta Cemetery and shopping mall. The architecture around you is beautiful. Some of the best parks are nearby. Some good places on the surrounding streets.
The bed is comfy. One of the best ones I have slept on.
If you're working from home, the furniture isn't the most comfortable. Something to keep in mind.
Great place. I hope you enjoy your stay.