My boy friend and I went there for a long weekend holidays, and it was sooo good. We enjoyed the house, which is well prepared for making your trip comfortable and has all you need for your stay.
It is not in the cinty centre, but eventhough is well located, in a good neighbourhood. You can go by walk to the city centre in 25-30 minutes or take the metro or bus in only 10-15 minutes.
There are couple of bars on the surrounding to experiment the good portuguese breakfasts and meals.
I would repeat the experience if I returned to Porto.
The welcoming was so good and familiar, and they satisfied all our needs.
It was easy to park for free near the house.
I would definitely recommend it.