Honestly one of the worst Airbnb's I have ever rented:
This apartment receives direct sun from 2PM to 8PM and in rio, it makes an apartment more of an oven. You have to shut the curtains and run the air conditioning - nonstop. It's painfully hot. Now add in the fact that the owner makes you pay for the electricity you use (NO apartment I have ever rented has tried this crap) because she knows you will need to run the AC nearly all day and night to live in this "oven", all seems rather tacky.
The owner is very sweet and caring, but her level of being cheap (plus the afternoon sun) ruins the experience.
There are soooo many great apartments to rent in Rio - this is definitely one to skip.