If would be able to give 6-stars, I would :) Nice place indeed: location in the very city centre, but in a calm side street. We went to several places outside the Lisbon and every time transport was in 5 min walk. Overall apartment room is in a hotel style with own bathroom and big shared kitchen. Very convenient. Nice things such as coffee machine, etc were also there. Owners are flexible, mechanism of check-in/check-out is smooth: if you need assistance, you have it, if prefer to meet nobody during your stay - also possible (we met owner just once in the beginning).