My father and I stayed at Joana's place for two nights. It's a bit removed from the tourist section of Porto which was great for us as we felt overwhelmed at the main riverfront district downtown. There are plenty of cafes, restaurants, and bars just up the street and downtown is about a 15-20 minute walk.
The apartment was sparkling clean, included two full sized beds, and the views from the balcony overlooking the city were stellar. The parking spot was the main reason why we booked Joana's place and the garage was secure and easy to access, even after we checked out. If you are looking for an apartment in a more traditional neighborhood of Porto with a free parking spot, this is your place!