I stayed here for a month in July. It's a nice, clean and well equipped place.
You're in Bairro Alto, so it can get noisy in the night, but the bedroom is quiet as it's opposite from the road.
No AirCon, but with windows on both sides the place was venitlated and cooler than outside.
My only downside was the internet connection, which was very slow (on average 8MB) and made working remotely difficult.
Overall a good choice for short stays or vacation, and to enjoy the local nightlife.