I've been an Airbnb user for long time now and I've always written positive reviews, however, this time unfortunately I have to write a very bad one.
When we arrived to the apartment, everything seemed fine despite the fact that the sheets of the bed were so old and yellow that I had to call to change them. Our feet turned out black when walking without socks and you can tell that the duvet cover was not washed for days. The final straw came when we found a dead cockroach next to the bed on the last day.
We had to wait for three days to have the wifi fixed due to a heavy rain. This was unacceptable as we stronlgy needed it.
The second night, we were back from a wedding at 2am and there was a very loud noise coming from the bathroom walls, like running water. The boiler in the kitchen was extremely hot and we couldn't close the access to the water, therefore we got scared and we had to book a last minute hotel room next to the apartment.
Regarding the bathroom, the toilet is located almost under the sink, and there was water all over the floor all the time.
Finally, the amenities are very limited and there was not even a closet to hang the clothes. The apartment was very old and even the wind was coming in through the window.
I don't recommend to stay in this apartment at all and if I ever come back to Buenos Aires, I will never stay here again.