Julia is the best host that I have ever met (all over the world!).
She cares about every single detail. She checks on you all the time in case anything is needed. The house is in excellent condition --mostly because of her had work (I just witnessed her working in the house literally all day long).
This is one of the best places to stay in Rio. The location is great, the house in itself is extremely nice and comfortable.
I definitely recommend!