Christina's flat is very well located in Copacabana. Lots of touristic spots on a walking distance and really good bars and restaurants nearby.
It comes with a price, the neighborhood can be a bit loud, so those looking for a peaceful environment should avoid.
Moreover the infrastructure is good, flat was comfortable with really good AC and good quality internet.
Christina is also a very attentive host, very solicit to any requests we had.
Highly recommend