The apartment is perfect for sunny days where you can leave the doors open, offering a cool interior and lush outdoor areas for relaxing. Beds are firm and comfortable, decor is eccentric but characterful. Kitchen is fairly basic but there are great places in Sintra to eat out.
Location is great - far enough from the busy tourist areas, but close enough to quickly walk into town.
Be warned that if you're driving it's difficult to find due to the one-way system and winding roads - especially since Garmin maps don't have the latest one-way info. Google maps are pretty dependable though.