In terms of service there is probably no better option. Paula regularly checked in with us to see if there was anything we needed help with etc and helped us if that was the case. She was also forthcoming and made it easy to find the place by arranging a taxi for us. Also, the fridge included some complimentary beers and water :)
Other than that. The flat is nice for two people. The neighborhood seemed safe, we never felt afraid etc.
10 minute walk to copacabana beach.
Highly recommend a stay.