Elisa is a helpful and welcoming host.
The flat matches the description and the location is in am affluent neighbourhood literally 50m from the beach though not on the noisy main road which is a good thing. The building has a 24hour concierge service with a locked gate at all times. The neighbourhood is full of restaurants and shops a short walk away. There is also a tube station a short distance away.
The minor issues we had were with the noisy refrigerator and a faulty shower head which could do with being replaced. The price is on the expensive side but the location is fantastic, especially if you have kids as this part of Leblon beach is definitely family friendly.