I had a great stay in Ronaldo's apartment. It is very lovingly decorated and has a nice design. Copacabana beach is around the corner.
Ronaldo and Marcelo were both always eager that I have a good stay. They helped me with my activities and were extremely helpful. Especially in cultural things about Rio Ronaldo has a great knowledge.
I can highly recommend Ronaldo's apartment and would stat there again when I would be back in Rio :)