Andrea would get 6 stars for communication if I could. He is the most exceptionally attentive host i've ever encountered on AirBnb. He was accommodating, understanding, and genuinely interested in making sure everything went smoothly. He was very kind when one of our party got sick and we left a night early.
The apartment has been described by others. It's a genuinely charming and exciting place to stay. There is an incredible amount of stuff within walking distance, if you can tolerate hills of Lisbon. The only downside is, yes, it's pretty loud when you need the French doors open to cool the room. But, if you're picking this location, that is probably a perk instead of a defect. It can be warm when trying to sleep, but by using the fans provided with the living room windows open and ear-plugs it was more than comfortable. Would definitely stay again.