The flat is nice, clean and very well located. A few minutes from the subway station 'Bolhao' and 5/10 minutes (depending if you go down or up ;-)) from the historical city center. We slept really well as it was quite silent. You have a kitchen to cook if you'd like and some tea/coffee. The place is huge so no problem if you have big suitcases! We did not meet Mario but we were welcomed by his friend Rafael who gave us some good advice about the city. I would definitely recommend Mario's place!