We had a wonderful stay. Apartment is beautiful and comfortable for our family of four. Loved that we were right on the pedestrian street where shops, food, bars, patio drinking/dining are plentiful. Also within walking distance of many sights, close to the plaza for bus pickup and right around the corner from the train station.
We learned that Baixa is the "low" area of Lisbon so no climbing hills like you will in nearby Chiado and Al Fama.
We'd fully recommend this place for location and amenities - we'd even stay there again on our next trip!