We (group of 4 people) had a great time while staying in this apartment!
It is located quite high up Monte Estoril which is why you get such an amazing view from there. Just keep in mind that it can be quite exhausting to walk up there. But the walk was definitely worth it. Monte Estoril can be reached by train or car/taxi of course and is located in the beautiful coastal area of Cascais. This area is perfect during summer because you have a beach and little harbour very close to the apartment and a nice little old town with some restaurants and shops. And especially now there are luckily not a lot of tourists.
The apartment is nicely decorated, very clean and looks exactly like in the photos. The kitchen is very well equipped but we had to pay an additional service fee of 80€, which sadly does not include enough toilet paper or trash bags for 4 people.
Despite that we still had a great time and I would definitely recommend staying in this apartment :)!