First of all, Antonio is a superb and gracious host! He was very accommodating and provided wonderful information as to what to do both in Porto and elsewhere in Portugal!
Antonio went out of his way to meet us at the airport as we were arriving very late. He made sure we got to his place and then offered to help out if the need arose during our stay.
The place is in a perfect location; super close to the Train and Metro and easy walking distance (20 min) to the river, shops, port tasting in Gaia and everything else there.
We would highly recommend this host and location.