My mum and I stayed here in early September for a week. We had such an enjoyable and fun stay. The apartment was light, clean and airy.
The location was excellent, on the edge of the old town, so not overly touristy, but still a great selection of cafes and restaurants. It is a short 10 minute walk to the Metro, but we only used it to get to and from the airport, as everything else we wanted to see was an easy walk away.
João was waiting for us when we arrived. He took the time to welcome us, to tell us everything we needed to know about the apartment, and to make some great dinner and sightseeing suggestions.
There is a great café called Molete one minute walk away from the apartment. We ate breakfast there almost every morning. The Pernil sandwich at Café Guedes (also one minute walk away) is a must-try, we found it delicious. We had an exceptional tapas dinner at Cantinho dos Bragança on Rua da Alegria, again, only a short walk from the apartment.
It was very easy to sleep as there was no road noise. I found the sofa bed to be very comfortable.
I would definitely stay here again if we revisited Porto. Highly recommended.