Me and my girlfriend had a great time in Porto. The apartment of Paula was great! Very easy if you take the metro from the airport (20 minutes), you just have to walk 5 minutes to the apartment. Also the apartment is close to the city center (15/20 minutes walk). The apartment itself is also perfect and has everything you need. Paula was a very nice host. She showed us what to do in Porto on the map and were not to go for diner.