This flat was perfect for us 2. It felt spacious. I think it would be ok for 2 adults and a child, but might be a little tight for 3 adults, at 50 sq meters. It is bright and very clean. It is located in a quiet, safe, well- lit neighbourhood, and the neighbours in the building seem quiet too, though we could hear some muffled noises from the people in the flat above. There are room darkening blinds to help you have a restful night's sleep. The view from the kitchen is a delightful little garden with a huge palm tree. The view from the living room (on the same wall) is the building opposite and the driveway. The kitchen is basic but includes an espresso machine so bring your Delta Q coffee pods! The bed is firm and there was good pressure in the shower. Maria left lots of amenities (shampoo, soap, slippers, toothbrushes, etc) for us which was helpful, and welcomed us with a bottle of local wine and lots of information! The elevator is very close to the door but we never heard it during our 5 nights there. We enjoyed the location in a residential part of Estoril. A bus leaves from near the flat and goes to Sintra. A 10-15 minute walk downhill takes you to the train station where you can get a cheap train to nearby Cascais (loads of restaurants, shops and nightlife) or Lisbon (5 Euros return, about 25 minutes each way). But even better is the beachside promenade that takes you to Cascais on foot. (Nice if you want a pleasant digestive walk after dinner in the evening...) Accross the street is a restaurant/pastry shop and next to it, another pastry shop. A bit further on foot, there is a small Spar supermarket. All in all a great place to stay if you like peace and quiet and don't mind walking around!