Carlos and Helena have a lovely apartment if you want to explore Porto!
The apartment itself is cleverly divided in different compartments, so it feels really spacious. Everything was spotless clean when we arrived, Helena provided maps and local tips during the check in, and we even received a complementary bottle of wine! The apartment is stylishly decorated so we felt right at home. The bed is comfortable, the kitchen is fully equipped (oven, pans, even a blender), there are very soft towels to use and everything is/feels brand new.
The location of the apartment was perfect for us. The metro goes straight from the airport to Bolhao, which is a metrostation just 2 streets away from the apartment. The neighbourhood itself has some nice restaurants and bars, is close to shopping areas and not that far from the city center. We reached the old city center in around 10min. Porto is not that big a city, so everything is reachable by foot. The furthest we went was on the other side of the Douro river and even that was on walking distance (I would say 20-30min, but then you've walked through the entire city).
We loved the apartment, the location, Porto, and the never ending hospitality and kindness of Carlos and Helena. Helena explained the entire city with every visiting spot and restaurant she knows during the check-in, and later during our stay she even called if we needed umbrella's because it was raining haha! Overall, a great example of the Portugese kind hearted spirit!