We spent three days in Lisbon and loved it. Lisbon Heart provided an excellent service, meeting us on our arrival, providing us with plenty of local information, and offering a bag storage service on our final day so that we could keep exploring without our luggage in tow. The apartment is a little noisy, being directly on a tram route, but we were fully warned about that in advance and it wasn't an issue for us. The location was great – just a short walk to the nearest metro station, into the centre of Lisbon, or up the hill to the castle and some lovely viewing spots. All in all, we would really recommend Lisbon, the apartment, and the experience with Lisbon Heart.