We really enjoyed staying at Maria's apartment. The pictures of the place are pretty accurate. It is very well located (a metro station nearby and walking distance to historic center). If you are traveling by car, you could also benefit from using Maria's parking spot in the garage. The communication with Maria was fast and easy. Although Maria was not there on our arrival, she arranged for her friend to greet us who gave us a few pointers on the surroundings. Maria left us some useful info about Porto, a map and a nice bottle of wine.