Mario's apartment is a great place for any trip to Porto - not too far from the river and very close to lots of bars and restaurants, yet is still pretty quiet at night. The apartment itself looks absolutely amazing, and is really nice to come back to after a long day of sightseeing. As for Mario, he's extremely helpful and friendly! The app he has made also shows just how passionate he is for you to enjoy your trip and get the most out of Porto. Definitely want to come back!