We stayed at this apartment for a week end of October. It was a perfect location for exploring the city by foot and also for day trips as it’s minutes away from the subway and train station to Sintra. We loved that it was on a lively street (a few flights of stairs up) with music and very quiet with the windows closed. It does get warm in the evening though with windows closed, so I imagine very hot in the summer without AC. Communication was great and we felt very comfortable throughout our stay. I would recommend this apartment!