I stayed here during the world cup finals when Rio was extremely crowded, except in the apartment aria, it was calm, safe with security at the building gate, and surrounded with the best restaurants & bars in Rio. Still 5 mins walking we reached the Leblon beach.
Facilities at the flat was perfect especially the internet it was excellent.
P.S.: there was very nice lady welcomed us at the time of arrival and she gave us useful tips about Rio with map and directions and all in English ;)