It was a pleasure to stay at Silvia's place.
Location is excellent: in a quiet and safe street in Ipanema, 1-2 blocks from all (beach, nice restaurants / bars, subway, etc.)
The apartment is comfortable and the space has is nicely decorated. We stayed as a group of 4 friends and had a great time. We didn't use the kitchen amenities, but it's all equipped and has a nice dinner table, if you fancy cooking.
Last but not least, communication was very fluid with Silvia and Daniel and they were very accomodating in terms of our check-in and check-out dates.
I stayed in several places in Rio before ; this is my favorite so far! Highly recommended.