Marina's place is in a very central location, close to 2 metro stations, ferry terminal and a railway station, plenty of restaurants and bars nearby - famous Pink street is just a 10 minutes walk away from the place. Regardless of its central location it's quiet at night - and if the street is too noisy you can always use window shutters. It's on a ground floor so you won't have to climb stairs with your luggage. The place itself as everything you need be it a long or a short stay. Marina is very responsive and helpful. The only drawback was the slight smell of mold, but I guess it's common for Lisbon. Overall, great place!