Fantastic space with a modern look, and it has absolutely stunning views. It is in a favela but I never once felt unsafe, there is a strong community vibe there. Be sure to take good note the way to get there otherwise you might find it tricky the first time you try to return. It is a bit of a workout to get up the hill and steps everyday (I personally loved this) or you can take a moto taxi most of the way for about 3reals. George was a great host, even offered me a couple of beers and candles when there was a temporary power-cut because of extreme torrential rain in Rio.
If you want to stay in a place that can show you a very different and authentic side of Rio/Brazil, you are moderately fit and in a place with stunning views for a very reasonable price, I'd fully recommend this place.