We had such a wonderful stay at Nelson's apartment.
Not only is the place extremely spacious, it has everything you need for a comfortable stay and was clean and exactly as the description states.
A short stroll from the centre of town and the old town the area is so quiet at night although there is still restaurants and shops within a quick walk so it makes for a very relaxing and easy stay.
Nelson and his wife, Isabella were so easy to contact, did more than expected and made our stay perfect. Couldn't recommend the apartment more and is a must stay if you are in Porto.