Luis' place is the perfect place to stay in Porto. The location is unbeatable, right next to the Library Lello, walking distance (10-15min max) from every monument in Porto and great surroundings (restaurants, bars, stores, parks, transport, etc). The apartment was just like the photos, even bigger than we expected and very nice overall. The building is beautiful and the lift was a very pleasant surprise. All the amenities were there, it was very clean and organized, has AC and heater and Luis was very kind to let us check-in early and check-out later, he was also very responsive and gave clear instructions on how to get in when we arrived.
Would definitely go back to this amazing city and beautiful apartment!