Joao is a wonderful person, extremely kind and available to show you the surroudings, talk about brasilian politics and culture, philosophy and art, even to meet his friends or go to a samba if you want. The location is great, near to the metro and in the neighborhood of the artists (Santa Teresa). The house is simple but has got everything one needs, and also a nice veranda. I've been here twice, for several weeks. Highly recommended!