I've been in Rio many times and choose this apartment because it's located in my favorite part of the city, with good transportations, many 24 hour services, just between the beach and my beloved sandwich place Cervantes.
Carolina was a great host, full of tips of the best places to go. The apartment is nice and quite, very comfortable bed, ok bathroom, tiny kitchen (that I didn't use).
I get that all visitors have to register with the door man, but I missed and didn't like the rule that no visitor can stay over night.