Paulo's place is great - lovely location in the Foz area, right near the beach but with easy access to the city and with lots of restaurants nearby.
Paulo was very friendly, welcoming and considerate - even giving a courtesy call the day before to explain check in. His instructions were really clear and get-in was simple.
The apartment is well equipped, very clean and comfortable. There were nice touches with water and coffee. All in all I would definitely recommend Paulo's apartment for a very reasonable stay in lovely Porto.