Booked it during carnival as it was the most reasonably priced listing in Copacabana. Location is *perfect* and the host was responsive, though the check in instructions could be a lot better. Pedro responded to all my questions though. Internet was great too.
I booked for ~3 nights but only stayed a night. The bathroom was dirty to the point my partner didn't want to step barefoot in it, so we found a new place to stay.
Specifically for Carnival, I probably would have spent a little more to get a more comfortable Airbnb. Otherwise, I'm sure it's a great budget option.
Also, Pedro's cat is very cute.