Golgota 21 was a lovely clean apartment with very comfortable beds. The courtyard with the view over the Douro River was a bonus for sitting and relaxing.
Porto is hilly and with that there are hills and stairs. If you are not a fan of stairs, then this is not the place for you. But if you love clean and quiet and a walk on the river (20 minutes to the historic part of the city), then the location is very nice.