Claudia's apartment looks exactly what they look like on the photos: newly renovated, clean and very close to the beach. Supermarkets are steps away, metro is within 10min walk and banks are within walking distance. Apartment is safe, the street is busy even in late night, so no need to worry about coming back late. It is very suitable for those travel alone and wish to enjoy a comfortable place for their own.
Most importantly, Claudia is a very nice and patient owner, she would try her best to explain even if she doesn't speak English. Even though, communication was perfect.
The beach is on a less crowded side of copacabana.