We rented the flat for the full week of carnival. The apartment was great, very big for the 2 of us. It has everything you need in the kitchen. The building is very safe and in a nice neighborhood. Supermarket is around the corner, shopping center nearby. The Leblon beach is 2 blocks away. The contact with the host was great. Regina and her son were very responsive. We had some issue with the wifi and we were able to resolve it pretty fast.
We had a great time in Rio and we highly recommend staying at Regina apartment.