This place feels like you have a great home in Cascais. It's well equiped. It has a dish washer, washing machine, some toys for kids, etc. Art on the walls contributes to the 'home' feeling.
The house has 2 floors and a roof terrace with hammock (great!!). It's pretty small but you don't notice that: every corner is used in a smart way and there's plenty of natural light. The bedroom is on the top floor and has a good bed.
The location couldn't be better! We came here by train. The house is very close to the train and bus station (with easy connections to Lissabon, Sintra, ...), very close to the beaches, parks and yacht harbour. It's in a cosy historic walking street with lots of good restaurant choices.
One small thing annoyed us at times. The living room is above a restaurant and sometimes they turned the radio quite loud. Luckily they close before midnight but it disturbed us a bit on some afternoons and evenings. They're nice people (we ate there a few times) so I guess they might turn it down when you ask.
Overal very recommended. If you stay in Cascais, this is the preferred place.