My family and I had an enjoyable stay in Rio. Marco was a very helpful and responsive host, checking in on us frequently and making sure that we had a good time. He even provided us with a bottle of champagne in celebration for the new year! The Airbnb is located in a nice part of Copacabana and is walking distance from the beach and close to a metro station.
One thing that would be nice is air conditioning in the apartment because it was pretty warm when we visited (summertime in Brazil). The listing also doesn't provide this, but we would have liked to have bathroom products (shampoo, soap, hair dryer, etc.) as well. Otherwise, we though Macro's Airbnb was a good place to stay while enjoying Rio.