We were very pleased to stay at this spacious, modern apartment in a relatively quiet neighborhood. A metro stop is just steps away, but we ended up walking all the way through Principe Real, Bairro Alto, Chiado and back in one day. Those popular areas are all relatively close by (although very hilly).
The apartment itself is clean and open and gets great light during the day. The weather in October was perfect to open the windows and enjoy the breeze at night. Note that you do have to walk up and down four flights of stairs when coming and going. The washing machine for clothes is a big plus!