Great Flat in a perfect location!
The flat is close to everything in central Porto, and is located on a pedestrian street with cute shops and cafes (there is no access with a car to the front of the flat. It's not a big deal, it's only ~70meters from the road).
The flat itself is spacious and was very clean. Has all the amenities you'd expect and good internet connection.
Communication with the hosts was efficient and fast and they were helpful.
Definitely recommend this as a central hub when you come to Porto.