Antonio's place is great! It is perhaps a 20 minute stroll down to the river front and about 20 mins away from the airport on the metro. We were met by Alexandra who works for the meet and greet service that Antonio uses, and she was brilliant, giving us her mobile telephone number and encouraging us to be in touch with her should we have any questions. Antonio's apartment is well proportioned and stocked. We were two friends travelling together so one took the bedroom and the other the sofa bed. I would just add that the sofa bed was an excellent fit for me at 5 foot 4 but if you were taller than that and wanting to use it, it may be a little snug! All in all an excellent flat and we would stay here again if we returned to Porto.