This is a lovely, clean, ultra modern apartment in a fantastic historic area close to everything. We never used public transportation though we are strong walkers who prefer wandering on foot. Buses and metro were available and we did take the metro to the airport. Getting to the apartment from the main train station, Sao Bento, was walkable. For us it was fine...if we had roller bags it would have been a bit harder because the sidewalks are extremely narrow and cobbled. It is uphill, also, so prepare or take a taxi. The place itself is a block from a grocery which was great. Eat at Tripeira (2 blocks or so away) at least once! So warm and friendly, though that seems to be the rule in Porto.