We really enjoyed our stay in Porto in Apartment 4.
Clean, comfortable apartment with incredible views and a well stocked kitchen. We thought the location was excellent, being able to explore upper and downtown Porto. Be prepared for a lot of stairs up to apartment on arrival, but we found this ok knowing the top had such a great view. We were able to leave bags at the hosts office on check out day which was also incredibly helpful. We loved our stay and would recommend to a friend.