Our stay in Porto in Diogo and Christiana's place is wonderful. The apartment is only minutes by foot from the main train station Trinidade and very near to historical city center. One does not need to extra purchase tickets, as we were able to walk around the tourists hot spots by foot. The recommended places from Diogo and Christiana to visit and eat also very good. The place is clean, bright, have everything you need for the stay. They also replied to your questions very fast. One tiny thing to considerate is the walls are very thin as you can hear your neighbour walking or talking. Overall a very nice place. Thank you Diogo and Christiana!