Rosa was very kind and helpful from before our stay, until after our stay. She gave us lots of recommendations for what to do around town. She was quick to respond to any favors or questions. The apartment itself was a 3 minute walk from a main metro station. Also had bus, and taxi stops just outside the apartment. You could walk about 10 minutes and get to lively parts of the city for nightlife. The apartment is very clean and well kept. I highly recommend staying here if you come to Porto.