A very good value just around the corner from the historic center of Cascais. A quick walk to the beach, restaurants, museums, or park, but nice and quiet at night. Exceptionally clean.
As others have noted, the upstairs is best suited for older kids/tweens because it has sloped ceilings. The beds are firm (we actually prefer this). The kitchen/laundry area is well-stocked and there are clotheslines and a pop-up hanger to hang-dry clothing. Wi-Fi works great. Plenty of hot water - with six of us we never ran out.
Continente will deliver groceries here, though sign-up requires a Portuguese phone number (we had one because we bought a Vodafone sim at the airport). Be sure to use 4A as the actual street address number (not the floor/unit) when using grocery or food delivery to avoid confusion.
One tip for my fellow international travelers…if you have a larger group traveling to Portugal…taxis and Uber XLs are not able to take six people plus luggage (we had to take two Uber XLs on the way in from the airport). Their vehicles may say 6 passengers on the app, but this is because these vehicles have 2 flip down seats in the hatch. If you have any luggage at all you can’t all fit. Pedro had a great contact for a real van shuttle service for my family when we left his place, at a reasonable rate.
Thanks Pedro!