Hats was an absolutely wonderful little unit in a gorgeous part of Old Porto perfectly situated amongst many quaint little streets with artisan shops and beautiful cafes and restaurants. Location is wonderful, the unit is a great size and is clean and tidy and beautiful. There is indeed a view only of a vacant building, but this is not problematic as we were there not for the view but for a place to sleep and shower while exploring Porto - for which this unit was perfect. There is a restaurant patio on the ground floor which stayed somewhat noisy (but not terribly so) until around midnight, but this was not problematic for us, thankfully (and we also had the windows open to enjoy the beautiful weather which obviously let more sound in). We would absolutely stay here again.