Joaquim and Edith are exceptional hosts. Their house is lovely, they couldn't do more for us but would be invisible if you preferred. You will need some knowledge of Portuguese or French to have detailed conversations and a car would be of assistance if you wish to visit the beaches at Estoril / Cascais / Guincho or across the river as the public transport to these places is very slow. However, if it's just Lisbon / Sintra then the train is ideal and the house is near to the station. Highly recommended - it was a pleasure to stay at their house.