We only ended up staying 1 out of 3 nights as the noise from the street level kept us awake. We hadn't noticed comments about this in previous reviews, so were surprised by this on our first night.
The listing is very conveniently located (close to the beach and all Ipanema attractions), but it is next to one of the main beach roads, so there is traffic (including buses and trucks) at all hours of the day.
Gustavo was a great host - easily accessible and very friendly. He was however not very sympathetic to our concern about the street noise.