We had a great time staying at Carlos' place. The place was exactly as the pictures showed. There was AC in the bedrooms, which was great for sleeping. Cable and Wifi throughout the house was very helpful given that we were visiting from the US and didn't have a data plan. The showers in the bathrooms are huge! There were 5 of us staying and there wasn't a time that we felt crowded.
Carlos was very responsive and accommodating to check in and check out times. The key exchange was very easy as well. He also gave us some suggestions of nearby restaurants to check out! There's lots to do, see and eat nearby! The building itself has a security front desk attendant 24/7....it was a nice added layer of security. Looking out and seeing the beach and all the activities along Copacabana was awesome and super relaxing. We were also very close to the Ipanema beaches too - an easy walk. I'd highly recommend this place to anyone looking for a place to stay in Rio!