Isabel's place is wonderful.You're close to all the sights of Sintra, as well as the shops and bus, train routes.
Sintra can be steep, so you'll get your cardio in, but it's an enchanted place and very relaxing.
As I'm working from home currently,a reliable internet is needed, Isabel's internet is largely enough for zoom and the like.
Finally,besides Isabel great vibes I had an amazing time catching up with two of the most sweet doggos.
I highly recommend this stay!