This is a perfect spot for solo travelers or couples, the bed is comfortable and the kitchen and bathroom have everything you need. The building is also very quiet and, unlike many other listings in Rio, there is no doorman in it, which I personally appreciated as it gave me a sense of privacy. During check in, they were nice enough to bring the key to me where I was even before I got to the actual building.
I highly recommend this listing for those looking for a good location (right between Copacabana and Ipanema), quiet place and a more private stay.
Ps. the curtains in this apartment are white, if the morning light bothers your sleep, you may want to try a different option or ask in advance if this has changed.