Wow, we loved Luis' place. A beautiful view over the Duoro and well located to walk to restaurants, over Dom Luis bridge to the port wine cellars, and near to the funicular. We would definitely stay again if we return to Porto.
It is split into two rooms, the front with bedroom and shower and balcony views, and the back one across the hall with toilet, kitchen and dining area so has everything you need if wanting to cook, but the food in Porto is so good you won't want to!
Luis himself is very welcoming and knowledgeable and thorough, we cannot recommend him highly enough, thanks for a great stay!