Ricardo is a thoughtful and attentive host, I found lots of nice welcoming touches when I arrived. He offers a lovely apartment in a district a few miles from the city centre but with excellent transport links to both the centre and the coast. I enjoyed living among Porto residents rather than alongside other tourists: there are shops, cafes and restaurants within a couple of minutes' walk, as well as the Areosa transport hub.
Porto, with its river and its coast, is gorgeous, though surprisingly hilly!
I would recommend Ricardo's apartment to future guests.