Excellent place for visiting Porto, especially you're driving your car.
There's enough parking lot(but the entrance would be a little bit small for SUV).
Spacious living room, kitchen, laundry room, and bedroom. All were good to stay.
You can reach Oldtown of Porto on foot(takes 30 minutes or so). But neighbors look very dark in the evening. For us, we used Uber(cost about 4 euros from the center).
Thanks Paulo and Ricardo!