The apartment is exactly as it appears on the pictures. Perfect for 2 people. Luis responded very quickly to my messages and arriving a little later than originally planned was no problem. We were welcomed with a snack so we felt right at home. The apartment is located close to the city centre and you can walk to most places (just wear comfortable shoes since there is a lot of uphill and downhill walking).
When we visit Porto again we would absolutely stay at the apartment again!