I would recommend Julia 10/10. Beyond having a very mellow and stylish home with a stellar balcony, she basically saved my life when I very foolishly drank too much at a local bar. It was so generous of her to take care of me and way beyond any required hospitality of Air BnB--she is simply a very kind and caring person. Her house is very close to the center of Cascais, but tucked away so that the location is cozy and feels very safe and secluded. I am very lucky to have had her as a host.