We had a great time at Katia's place! Katia is a lovely and easy-going person and she'll answer all your questions about Rio!
The room and the double bed are very comfortable and the view is so beautiful! The apartment is well located near the metro stations Catete and Gloria - we loved to take vitaminas and coffee at the small lanchonete around the corner where all the taxi drivers stop to take a break - thanks Katia for the advice ;)