Great, compact apartment in a great location if you want to be right in the centre of Porto! Lots of stairs up and down (151 steps up if you are coming from the river) so be prepared if you have large suitcases that you may need to make multiple trips.
However, the view is spectacular - we spent hours just lounging on the balcony overlooking the river. Can get a bit loud at night since the apartment is right off a busy set of stairs, but nothing excessive.
Jose was only able to provide us with 2 keys (upon request for more than just the one) for 6 people which was the only real downfall of the place.
Overall would recommend this place to anyone visiting Porto!