Mario's instructions for accessing the apartment were very clear and we had no problems finding the space. He welcomed us in person when we arrived and provided us with a map of a nice walking tour of Porto. He even fixed the wobbly sofa when we mentioned it to him. Mario's apartment is very clean, stylish, and spacious with a great location. We had a great time in Porto, and Mario's apartment was a very comfortable place to call home during our trip! Highly recommended.