Carlos was a perfect host, he welcomed us and gave us some great recommendations of places to visit. The apartment is well located, not really on the city centre but walking distance from it. On the inside it is even better than on the pictures, really clean and the bed was perfect. The only thing is that you can listen to the cars at night so, if you need complete silence to sleep, then better bring earplugs with you. Besides that, we had a lovely stay and we would go definitely back to Carlos' place if we return to Porto.