My friend and I had a wonderful experience at Onayr's apartment.
The apartment has an excellent location, allowing you access to both Ipanema and Copacabana beach. There is a 24 hour doorman and we felt very safe in the area. The metro station is right outside the door - super convenient! Onayr is an excellent host - he was easy to reach and checked in on us often.
The apartment is not large, but is well designed and very comfortable. It was great for two first time visitors to Rio that were spending much of their time outside of the apartment on the beach and touring the city.