We had a very nice stay at Luis' and Madalena's apartment. We came to Porto for a work meeting, and then enjoyed a few days of sightseeing during the week-end: the apartment is perfect for both, as you can work from there, it has everything you need and a good location, close to public transport and the city centre. Also, our hosts were very reactive as there has been a water issue in the apartment building at some point, and they immediately came to fix the problem. We recommend!