I stayed two weeks at the Cupula and while I could make it my home, I had a couple of bad first thoughts.
The bad: The bathroom was not clean when I first arrive, there were some papers in the toilet and pee on it. There were a lot of hairs in the shower's sink that made the water stuck. Under the bed there were something that seems to be used toilet paper. The location, while everything is close it is waaay too noisy most of the time and there is a building in front that makes you keep your main window closed the whole time for some privacy. The building is old and the lifts break often, it also doents seem to be prepared for a fire emergency. The lack of small details that you normally find in other Airbnbs such as salt and pepper, oil, etc.
The good: Still it is very cozy. The afternoon sun makes a beautiful effect when hits the candles. A/C. The internet is stable most of the time. Might be noise outside but if you close the windows you will be ok. At night (when the office building fron in front is closed) you can go out and appreciate the city. Lots of places around like theaters, restaurants, stores and good connection to the subte and the bus station.