I stayed at David's apartment for one month, while working at the university PUC. The apartment is cozy, clean, and in great location, about 500 metres away from the beaches of Ipanema and Copacabana. I would even work there some days, and enjoyed to walk over to the beach for short breaks in the afternoon, or to go jogging in the evening. Supermarkets, shops and the metro station are within 5 minutes walking distance. I also felt very safe, there is quite some police presence around the neighborhood. David is a fantastic guy and responded immediately whenever I had a question. Overall, I can only recommend to stay in David's apartment!