My parents, siblings and I had a lovely week-long stay at this amazing house that is just as it looks in the photographs.
The house itself was wonderful. It had everything we needed. It is beautifully decorated and maintained and was spotless upon our arrival. There is a lovely little garden where we sat out with a drink or two after a long day of sight-seeing. Three of the bedrooms are a really good size (one having an en suite bathroom). One is quite small with a single bed and is probably best suited to a teenager. The house is situated over three floors and perhaps isn't suited to the more mature traveller or very young children.
We arrived late due to a delayed flight but Joao was waiting for us and was very forgiving of us keeping him waiting. He was really friendly and helpful and gave us lots of suggestions of what to do and see and where to eat. We were in touch with him a few times during the week with various little questions and he always responded quickly and went out of his way to assist whenever he could.
The location is also good. The house is on a little street and so there isn't too much passing noise. There are a couple of small supermarkets, bakeries and greengrocers nearby. It is easily reachable by the two closest Metro stations (no more than a 5 minute walk). It is a 2-3 minute walk to Avenida dos Aliados. As Porto is so compact we walked everywhere during our stay.