Quirky little place in one of the most beautiful areas we've ever stayed in. Carlos and Madalena's cottage is a great base for exploring Sintra and the surrounding areas. We didn't have a car and were happy walking and getting buses/trains. But in hindsight it might have been a good idea for visiting many places along the coast in one day.
The cottage itself is well equipped, with plenty of space, a good kitchen and good bathroom. Carlos and Madalena were so helpful with their tips about what to do and see in Sintra. Their welcome pack was great and they had loads of maps and guides to help us.
The two slight downsides for us were a little bit of noise from some dogs in the area, but as long as you have earplugs or aren't a light sleeper you'd probably be fine. And the wifi was a bit inconsistent.