I stayed with 2 friends of mine and it was our first time in Porto. We had a wonderful stay in the Airbnb of Pedro. He communicates very well through the chat of the airbnb app and before our stay he already gave us some tips of Porto and we could already ask him some questions. Arriving at the airbnb we were very happy with the apartment. It is very well located in the center of Porto and it was very clean and nice.
The only tip for Pedro we could think of, is maybe having a little bit more of kitchenstuff, like towels and pans.
I would really recommend the airbnb of Pedro and Pedro as a host.