We stayed in Rafael's apartment during rio carnival 2017 and had a great stay.
Location - Safe residential area which is right next to a large row of hotels running down to the beach. Some great food options for breakfast, lunch and dinner nearby. Also just 7 minutes to the local metro. We felt safe coming and going from here even late at night. Only thing I would say is that if you can't sleep with traffic noise then this isn't the place for you as it is 6 floors up but on a main busy road in. I'm fine with this living in a city and caused me no bother.
Property - 100% as photographed. Clean with plenty of space for two people to stay and having. Shower was powerful and hot enough too. A/C is great and keeps the place nice and cool.
Rafael - Great host! Before arriving I asked about having an ironing board and although he didn't have one he ensured one was bought before my arrival. Didn't have to do that at all!
Rafael provides a great list of local bars and restaurants which we visited a number of and they were some of the best we visited during our stay. Bar urca after sugarloaf was a great evening, Cervantes provided a great pork sandwich for lunch and Nova Capela was a great traditional place in Lapa. The lamb is great there!
During our stay we had some questions with regards to the cooker and shower and despite being away on holiday himself, Rafael was always quick to respond.
All in all, if you're looking for a reasonably priced apartment for carnival, or any other visit to Rio for 2, this is a fantastic choice!
Obrigado Rafael!