Great location for hiking and Lisbon. Trips to Lisbon quite straightforward. After reading about difficulty with parking in Sintra, i was a little worried. From the perspective of a weekly visitor to London, it was a doddle. And two and a bit euros for the train....a delight.
As for hiking the location is ideal for wooded hills and exciting coast.
I should also say befs comfortable, and the view from the garden is remarkable. The photos on the listing under sell this by a country mile.