We had a wonderful stay in Luis & Eugenia's 'grey' apartment. Their friendly assistant greeted us and showed us around the apartment. They even had a lovely bottle of port waiting for us on the table.
The apartment itself was very welcoming and comfortable. It was immaculately clean and contained all the amenities that we needed. It is on the 3rd floor however, with no lift. So may not suit those with mobility issues.
The building and apartment have been renovated to a very high standard, but still have great charm and character. As this is a family business you can tell the owners are very proud of the space they have created.
We were lucky enough to meet Luis, his partner and Eugenia on our final day. They were wonderfully warm and welcoming people, and even showed us some of the other apartments in the building and explained its history.
The location is ideal. Only 5mins down the hill from Sao Bento station, 5mins to the waterfront, and close to many shops and restaurants. The hosts even give you a map with recommendations for restaurants, shops and cafes.
We would happily stay in their apartment again whenever we return to Porto.