We spent 4 pleasant nights in the apartment. The decor is really nice. Furnishings and equipment as in the description and very clean. Having your own car park is very convenient. We were a bit unlucky with the weather, but even when it rains you can sit very comfortably on the covered balcony. As others have written, you can hear planes taking off or landing. But we didn't feel disturbed and our baby wasn't woken up by it when he took a nap. The city center can be reached very easily by bus (bus stop right in front of the door) or the metro.
In short: A great place to stay for a visit to Porto.