This place is great. I would love to stay here when I am back in Rio. It's an awesome little studio. The smart TV works great, the Bluetooth speaker is excellent, the bed is comfortable, and the bathroom is clean and sleek.
The only cons that I can think of are:
1) There is a large window but no blackout curtain - when the sun comes up, you're awake.
2) There was plenty of cooking equipment, but no everyday ingredients (e.g. salt, pepper, oil, etc.) - also, the pan is incredibly sticky.
3) Noise from the hallway easily passes through the door and you can basically hear everything that's happening outside.
4) The porteiros (doormen) basically let anyone inside the building.