Very nice apartment and very nice hosts. We were warmly welcomed.
The apartment has a great location, almost in the center of Porto, in front of Pingo Doce and great restaurants are literally downstairs.
Apartment is nice and clean and is a good option for a couple of days.
It's not a place for light sleepers though. Windows isolate very well, but anyway there is a lot of noise when you want to have some air in the room.