Perfect location and stunning views. Very comfortable flat on the very top of an old building, so make sure you are able to climb the 95 stairs (the first flight is a little steep) and carry your luggage up. Despite the heat in Lisbon, we were able to have a nice breeze through the flat by opening all the windows.
Rui is the perfect host - he answered my questions very promptly and left us a lovely bottle of wine along with some coffee pods.