We had a nice time at Mario's Flat. Perfect location, in front of the Sao Bento Station. From here you could walk to all spots in Porto. Also cool, you see a part of the Clerigos from the window. The flat has everything you need and is in a very good shape. We had a bad luck with the washing Maschine, it was broke. Bad for our longtime stay there. But things like could happen and we would give the flat 5 Stars! If it is possible, we would love to come back :)