It's almost impossible to say enough about Sergio and the accommodations we enjoyed.
First off, the man himself, our host Sergio: Sergio is one of the most welcoming and helpful hosts I've ever experienced anywhere, Airbnb or otherwise. He is incredibly knowledgeable about Rio and was able to expertly guide us in our journey, recommending restaurants and activities and orienting us to the city quite deftly. He's also very available via text and Airbnb messages and always made us feel secure and taken care of.
On to the accommodations: This listing is prime! It's comfortably off the main drag in one of Rio's nicest neighborhoods, just minutes from lots of great bars and restaurants, the subway, and of course, the beach (Sergio will orient you to the area's beaches and help you pick the right one for you). The bed is comfy, the AC powerful, the shower, bathroom, and pool all do what they're supposed to quite well, and the outdoor and indoor sitting areas/living room are comfortable and are great for relaxing after a day out and about or for enjoying a leisurely café da manhã before you head out (you can gather up excellent coffee, juices, and other provisions from local shops--plus Sergio sets you up with a little coffee maker in the room with a strong Brazilian roast that still haunts my taste buds).
If you are considering a trip to Rio at any time for any reason, you can't do better than this spot. Highly recommended!