A super convenient place to stay if you want to be close to the Douro. Do not rent a car if you're staying here though... you will not need it. We had one since we were moving around the Minho region for two weeks, but quickly returned it to Hertz upon arrival to Porto.
Although the amount of natural light coming into the apartment is not great, the windows do a great job with noise infiltration from the street.
Size-wise, the apartment is perfect for two people. The wardrobe is too small for longer stays. In general, the apartment is a little small for more than two adults. However my four year old daughter absolutely loved the toys that were available for her to play with! Although there was a good sized television with satellite/cable service, a smart tv would've been a nice touch for those that are staying for extended periods.
The woman that checked us in (I apologize for not remembering her name) was very welcoming and helped us bring in our heavy luggage. This would have been more challenging otherwise since it the building is on a steep hill and there are a lot of tourists!