I canceled my stay in the flat after 1 full night.
The space is exactly like on the photos, very cute, and the host is very nice. Also, the flat has everything you need. Yet the huge downsides are the noise and the temperature, especially during summer. It is very noisy due to the poor sound isolation from the street with traffic. The conditioner does not cool down the space due to its low power as it normally should. I couldn't fall asleep for hours. I lived in other places in Rio, and these were not the problems at all.
When I canceled I didn't get any message on the website when I have to leave. I thought I could stay till checkout time that day, but the host came to my room and told me I have to leave now. Overall, it was a very stressful experience and stay.