This is a nice house in the heart of Urca, a lovely residential area in Rio de Janeiro. We felt quite safe in the house, it is close to places to eat, a mall and to sugarloaf and Praia Vermelha!
In summer, the only inconvenient in the house is that there is no air conditioning in the living room area, which make difficult to hang out in there (it can get unbearably hot). There is a fan in there, but it did not work for us (although they fixed and then it broke again after a few days).
Overall, I think the place is nice for spending time in Rio de Janeiro, but keep in mind the pros and cons!