Ana (João's sister) was very helpful and offered her assistance before and during my stay in Rio (she helped me find a favela tour, explained how to get a taxi to the airport early in the morning...).
Unfortunately, I did not get to meet her but I was welcome by a friend of her who perfectly spoke French (and English).
I arrived in the evening and coffee and breakfast was ready for the following day.
The appartement is clean. It's perfect to feel like a Carioca during your stay. It's simple and cute with very nice views of the city and Cristo Redentor!
I liked the quiet area and was able to feel as if I was somewhat part of the neighborhood (largo das Neves is animated on week-ends).
It's a perfect option for those who want a relaxing holiday. It's a bit far from most attractions but it wasn't a bother for me. I walked to Gloria every morning (2,5 km) and came back by taxi (after 2 days climbing up the stairs back home at the end of the day, i chose the pretty cheap and very convenient taxi option