Apartments are really beautiful, well equipped with everything you need during the stay. There are some supplys like tea, cofee, sugar, salt available for free in the apartments. There is small parking (max 4-5 cars) inside gated zone so if you are travelling by car you can leave it at the apartment and do not worry about security. There is small nice garden with lemon, plum and avocado trees where you can get some season fruits for free.
Cintia is great host, she spend more than half a hour with us explaining what to see in Lisboa and how to use different equipment in the apartments.
Duques villa is easy to be found using GPS/google maps. Location is might be considered as a bit far from city center especially for peoploe who would like to avoid a lot of up and down hill walking however Uber prices s Lisboa are very cheap so we have used it to reach apartment.
All in all i can recommend Duques villa as great place to stay if you would like to visit Lisboa during both couple days or some weeks.