Great communication from Ane & Sergio. Easy to check in and out. They graciously provided us with some refreshments and snacks for our stay upon arrival. A helpful notebook of instructions was provided and suggestions for things to do and see (although some of that was only in Portuguese and no english).
Comfortable apartment and bed. The air conditioning was a savior! The shower water never got very hot but it wasn't uncomfortable. Kitchenette is quite small so you may not want to cook much, or at least nothing too complicated, but it definitely came in handy and suited our needs for the week.
Great location - the building is 2 blocks from Copacabana beach and close to Ipanema beach too, a block from buses, and a 10 minute walk or so to the metro. Lots of restaurants and a grocery store nearby. Secured entrance. On the 9th floor with two elevators so never had to wait long to go up or down.
We were there during Carnaval, and this ended up a great place for escaping the craziness when we needed quiet, but easy to just step outside and join it again.