We stayed for four nights in a Studio on the third Floor. The Location is absolutely excellent with a one-minute Walking distance to Torre dos Clérigos and a Maximum of maybe five to ten to other sights in the old town of Porto.
The Check-in went smoothly and Joao who met us was very helpful with our questions. On Saturday, we could leave our baggage at the Office until our flight in the evening. This was not a Problem at all.
So all in all, a perfect stay. The only Thing was that on Friday night, it was extremely noisy due to the Restaurants and bars Close to the Apartment (during the week, there was no Problem with noise at all). But I guess that's the Price you have to pay for the more than perfect Location.
Absolutely recommended!