Perfect place to explore the city. Communication with the hosts worked like a charm.
One thing only: if you are used to sleep with open windows (and we had to because it was so hot in Lisbon), it is extremely loud outside during most of the night. Drunken tourists, a restaurant around the corner, trash collection (during the night!). It got a little quieter between 2:30am and 5am.
However, if this is no concern, the location could not be better.