It was very enjoyable to stay in Nathan's apartment. Everything you need is there. In our case, we also had a cot for a Little One, bowls for him, and a high chair. The apartment is located quite close to the center. A metro station is under construction across the street. Fortunately, the windows keep the noise off. It is quiet in the evening and at night. There is a park very close with great views of the city. The day bus to the airport also stops outside the building. Besides, Nathan is very helpful and nice. I would recommend anyone to stay here while in Porto.