This place is perfect! We went to Porto not knowing what to expect, and together with Mario's apartment, we fell in love with the city! His apartment's location could not be better. He was also very helpful with communication and directions and his friend referred us to all of the best and local places to visit in Porto. We would love to go back to Porto, and when we do, we will not stay anywhere else than in Mario's place. Definetly recommendable!