Great place to visit Porto! Not directly in the historical center, but the subway station is at only 50m from the apartment and it’s the direct line to the main sites (city hall, historical center, sao bento train station...). Otherwise, it’s about 20 min by walk to the center.
The place look really good, with a cosy common space and a little garden. The room is also nice with sufficient space for 2 people and the bed was confortable.
I’ve not met Annabella or Antonio but they reply quickly if you have questions and I was warmly welcome by the nice and smiley Paula who’s taking care of the place.