Thank you, Ines, for your charming welcome, even it was after midnight.
The apartement is nice, calme, spacious and with tasteful furnishings.
Full equiped kitchen (although we only prepared tea and coffee).
Only improvement: The ventilation in the bathroom could be better.
We could reach the city-center and the beach (Matosinhos) easily by Bus 500 or by Tram (3 minutes walk).
So I can recommend it to all, who look for a perfect location for a nice visit in Porto.
WM