I used this place for a business trip and had a car. I'm a local to Porto but currently living abroad.
Everything proceeded smoothly, very good communication and flexibility towards check-in.
The house is fully equipped, including dishwasher and dishwasher tabs.
An adult fits in the large bed in the kids room.
I recommend two nearby (15 min walking) restaurants: Mendi (indian) and Duvália (portuguese)