This place is the best airbnb we've ever stayed in. It is very well appointed - comfortable (especially the bed!), spacious, and immaculately clean! Pedro's apartment is also very well located, being in walking distance to all of the sites we wanted to visit (and it is right across the street from one of the biggest metro stations, making it easy to get around).
Pedro was a gracious host - very quick to respond to our emails and gave us an extensive overview of recommended sites and food options upon check-in.
This place really isn't missing anything - I would highly recommend it to any single person or couple visiting Porto.