The host is really very friendly and serviceminded.
The flat is situated in a residecial area. It is not within walking distance to the restaurant area (Avenida Olegario Maciel) or the Metro if you want to go to Ipanema/Copacabana. But Uber is very cheap and safe. If you come from outside of Brazil it is good to check with your cellphone company so you can use your phone in Brazil without limits. You will use Uber a lot and you need to be able to use your phone.
I enjoyed my stay very much.