We stayed at Maria's place for 2 nights (4 of us) and it was exactly what we were hoping for. It is located in a beautiful building on a quiet street, which faces the incredible views looking over the old town and the Douro river. The views from the flat, as well as from the garden at the bottom, are incredible, and were the perfect place to set up with some cheese and port at the end of the day. The flat is perfectly spacious for 4 people and was clean, well kitted out, and amazingly quiet at night. The 4 of us had an amazing time in Porto, and this Air Bnb was the perfect base for it all!