Great location! One block from the beach and close to many restaurants, supermarkets, pharmacies etc. Copacabana in general does have some crime but the building/Airbnb itself is very safe, they have security/someone in the lobby 24/7. I felt very safe here as a solo female traveler! I stayed for almost a whole month, Would definitely recommend! The unit is really clean and had everything I needed for a comfortable stay.
Also the communication with Marcos was great! I don’t speak Portuguese but Marcos does speak English so that was never an issue. I almost lost my key once and he was already on his way to give me a new one, very helpful hosts