Mario's Air bnb is in a great location. Coming from the airport was very easy and Mario gave us detailed instructions upon arrival. The apartment is a studio and looks very similar to the pictures. There are lots of restaurants around - and a good burger place up the street. Mario supplied us with 2 breakfast coupons at a local cafe which was great. We enjoyed our stay however, there was a very smokey smell due to a fire down on the first floor flat below which meant the whole apartment smelt like smoke and we had to keep our windows open. Due to that on weekends it can get really noisy on the street where the Air bnb is. We were woken up both nights due to people outside partying/talking loudly. Perhaps this was just a particular weekend however it was very loud. Otherwise a lovely stay and a very helpful host. Porto is a gorgeous city with lots to do and eat :) Mario was very friendly and helpful upon arrival and even asked if we needed to store our luggage at the end of our stay.