I was in Rio during to World Cup 2014. Stayed for one week sharing with my son. Thanks to Raphael and his mother, our stay was nothing but just perfect.
Close to everything but quiet and comfortable. Small, but you will miss nothing. They set this studio to make you feel at home. They live in the floor below and there's a 24/7 concierge: Anything you may need, they're extremely warm and helpful. Our flight arrived 4 hs late, 2AM! When we finally arrived, they offered to prepare some dinner for us. Go figure... Are you still searching for a place to stay in Rio?