Mario was very welcoming and kind host who immediately fixed all the misunderstandings with our extra bed and also visited us to check if everything is okay. We had a wonderful stay at his apartment. The rooms are clean and cozy, the terrace is amazingly stylish and convenient. The apartment is situated in the heart of Porto (Rua Santa Catarina, most visited places of interest, the bus station, the railway station, the supermarket are all near). We'll recommend this apartment to our friends. Thanks a lot, Mario!