Andre is a great host ! Easy to communicate and ready to answer all your questions at anytime. He will provide you wit many recommendations and will readily accommodate your requests.
His place is comfortable and private despite the private bathroom being outside of the room. Also, the apartment is very well located, surrounded by the most traditional and good bars/bakeries in Leblon. Subway station is right around the corner which makes it very easy to go to other neighborhoods.
I would recommend staying with Andre if you are looking to explore Rio.