Silvia's apartment is very well situated in Leblon's, a vibrant and lively neighborhood in Rio, close to nice restaurants, shops, ice cream parlors, padarias, juice bars, etc - in just a few minutes you can reach the beach (between Posto 11 & 12), Dias Ferreira Street and Ipanema. The apartment itself is very light and fresh, and its true - there is this cute terrace where you can have breakfast looking at the view (Corcovado included). The building has doorman/security staff, but no need to feel unsafe at all - Praça Antero de Quental just across the street is lively enough to make you feel comfortable.
This is the 6th apartment I rented in Rio, and definitely I'll be back.