This airbnb was professionally well-run. Mario did a great communicating and informed me with everything I needed to know about porto. The place is perfectly located down the street from the Sao bento train station in central porto. It was just a 5 min walk uphill to the apartment. The apartment is 5 min from the bar district, 2 min from the 'Harry Potter bookstore' and an enjoyable 10 min walk to the Douro river. Highly recommended overall.