The host, Antonio is very kind and speaks English very well.
And his mother is also very kind, so the stay in his house was very comfortable and relaxing. Futhermore, he guided all around of Rio city nearby his house by himself including supermarket, subway, etc.
If you have a plan to trip Rio, I really recommend to stay at his house, which is close to subway and Sugar loaf , of course, with a clean and cozy room. My family appriciate Antonio and his mother's kindness again since we enjoyed the trip in Rio very much.