The apartment is located in a quiet gated street (safe) directly in Copacabana and just a few blocks from the beach. Supermarkets, restaurants etc. are also in walking distance. Since the apartment is also equipped with a little kitchen and washing machine, longer stays would be no problem.
But the real value of the apartment comes with the host. Sergio is a very nice and communicative guy who can give you valuable tips and knowledge about the city to make your stay awesome.
Definitely recommend to stay here.