The apartment looks exactly like in the photos but is not that big as it seems . It's good located for exploring Porto by feet and it is easy to reach from the airport as the next metro station is only 2min away.
The Check-In was very easy (key box with code).
Unfortunately it is a bit noisy (fast driving cars on cobblestone) from the streets outside. So it is not possible to let the windows open by night without having ultra noise cancelling earplugs.
There are some free parking lots just before the house entrance, if you have a car.
All in all a good location for a short-term stay for a couple in Porto.