We stayed at Villa Maxima for a week with two other families (6 adults and 8 children, aged 10-16). It is a large villa, with plenty of seating indoors and out; the kitchen is extensively equipped. When we went, the 'twin room' contained a double bed rather than two singles. The whole place is decorated as a family home and is a little run down (eg tiles missing in the pool)
The local beaches are lovely and there are nice restaurants near Praia da Macas and outdoor pizzas/burgers etc in the local campsite on Avenida do Atlântico