Joao was one of the best hosts we've encountered on airbnb. He greeted us in person and gave us a thorough orientation of Porto on a map as well as several suggestions.
The apartment was very clean and the location was great. If you like to walk, you can walk almost anywhere in the central area and across the bridge to Gaia's restaurants and port caves. Porto is super hilly so if you get tired, Uber is very cheap. The parking garage was in the same building and was very convenient.
The kitchen was well supplied, our friend said the sofa bed was comfortable, and the living/dining room area was a good space. There was a desk and chair in the bedroom. Wifi was good.
The apartment was nicely decorated and had several informative and interesting books about Porto.
Overall a great value.