We really enjoyed our stay at Luis's place. We arrived later than expected, and Luis was completely accommodating. He greeted us when we arrived in town and provided us with all the info we needed on the apartment, as well as a ton of recommendations on things to do in Porto. The apartment was clean, stylish and well-situated - a short walk both to the beautiful Jardins do Palácio de Cristal and to the city centre. The backyard terrace was particularly lovely - especially for bird watching! We would most certainly recommend Luis's place to anyone visiting Porto (especially if it's your first time in the city!)