Excellent location. Close to a path along the coast and steps from downtown. Cascais appears to attract a lot of visitors, this place accommodates like a hotel room with added features.
Excellent host and/or management company. Incredibly responsive and accommodating. We were actually a little more high maintenance than usual, calling with questions or changing times to the airport, they were friendly and flexible.
Apartment is on the 3rd floor, older building, no lift. Easy to get around the city on foot, in fact would probably be best on foot because of limited parking in the area.