We (my boyfriend and I) really enjoyed our stay at the apartment of Luís. For us the added value of staying at an apartment from Airbnb is that you have contact with a person and not an organization. Luís is very caring, we really felt at home when we arrived and during our stay. It was a WOW experience for us.
The apartment is clean and it had everything we needed. The location is lovely and everything is on walking distance. We loved to walk around and explore the city. Also Luís had a Google Maps list with all the hotspots in the city.
Don't hesitate to book an apartment from Luís, because you will have a wonderful experience in Porto!