Marco and Carla are very accomodating regarding hours of check-in / check-out. We could leave our luggage in the apartment the afternoon before leaving.
Carla gave us great advice for visiting Porto (restaurants, monuments, etc.). And we could contact at any time if necessary.
The apartment was consistent with the description and photos provided on the site. It is in the heart of the historic center of Porto and is close to places to visit.
The apartment keeps some moisture (probably with stone walls, which nevertheless give charm to the apartment).
We had an excellant stay