Matheus is an exceptional host, one of the best of AirBnb's I've stayed at.
Regarding the apartment, location is fantastic, walking distance from beach and some of the best restaurants in Ipanema (by Nossa Senhora Park). Two groceries nearby (Zona Sul and Pix). Apartment kitchen it is well equipped, although it is a bit noisy and dark (the only natural light bleeds in from the balcony which is over a loud schoolyard during the day). Balcony does have a view of Christo from the side which is nice to see in the morning.
Note apartment is in the back of the building and the interior windows face courtyards.