Let's start with the good things.
First off amazing view.
The beds were very comfortable.
Couch was very comfortable. Lots of room in the apartment. Easy to walk across the bridge to get to Porto.
Not so good:
The heater did not work. The upstairs three did not work at all. The downstairs three only two were putting off heat and very little. We all were freezing (it was January that we were there) we had to be in all our jackets and covered in blankets while in the house. They were quick to respond and sent someone but when we got home for the day our electricity was out took 3+ hours to come and fix and the heaters were still not working.
The kitchen was beautiful but be prepared to bring your own napkins salt and pepper olive oil and coffee and tea. Items that I would expect from a nice Airbnb.