Communicating with Alexandra before arrival was easy and instructions for arrival were good. We didn't meet Alexandra upon arrival, but her friend Andrea was there. She didn't speak too much english, but was still able to answer our questions about the apartment. There was a folder with all the basic information we needed too.
The apartment building is not too fancy, rather a bit run down like the most of them in Copacabana area, but the apartment itself is just like in pictures. It has a modern feeling to it, and everything works well. Bed is comfortable, there is hot water in the shower, and the kitchen has the basic equipments. Also the internet worked real well all through our 10 days there. Aircon wasn't too cold, but it was working ok and definitely needed. There is no view from the windows except to the opposite wall - that is the only downside of the apartment.
The location is real good, only a block from the beach. There are some supermarkets nearby for buying groceries, and the metro station is nearby. We felt safe during our stay and didn't meet any threatening situations. All in all, a really nice place to stay. Would definitely stay there again.