João was an exceptional host. My flight departure time changed several times out of Gatwick and he responded to each of my texts by saying not to worry, relax, as I will be here when you arrive to talk about the flat and Porto. I did not arrive until 11:15pm and he was there at the door to help with luggage. It is a 5 star hotel when it comes to personal treatment. João's flat is located in a very quiet section of town that is only 5 minutes walk from the Rue de Santa Catarina, the promenade with everything you need. The flat is entirely renovated: it is perfect. João also spent time helping me find a food tour, a wine tasting tour and he booked the taxi as well. Of course he is very knowledgeable about Porto, and I tried to hit every hot spot he recommended. If you have the time, stay there more than three nights. I should have.