First, the location is superb. To your right is the Sao Bento station and the city and to your left is THE bridge. We don't prefer to stay in busy areas so this was perfect - so close to everything yet not in the middle of tourist area.
Nuno's place also had nice little touches that we didn't expect (220v converters, Super Bock beer in the fridge, extra towels and toilet papers). An elevator in the building was a plus.
Nuno was very responsive and went out of his way to accommodate us.
We loved Porto and want to return. We will def stay here again.