Very very nice people that let us in their house. We had our own bedroom and private bathroom. Very nice. They even bought us a fan because of the heat!
Furtheron I can say the location is perfect, at the end of the street there is a parkinglot where you can park your car for 12,50 a day. Two streets further you can get Bolt steps which you can bring yourself to the Douro river bridge for about less than 1 euro in 5 minutes or by walk in about 15/20mins.
I would recommend this everyone who wants to visit Porto!