We stayed for a month with my wife (actually she stayed the whole month and I only the last two weeks due to covid and delays). We both enjoyed the hospitality and warmth of the hostess Claire, and we took with us a little taste of the magic in that place, among the breeze, the sea, the stories that the people and animals and plants and rocks have to tell you if you give them your time. Sadly we didn't have much of it, as we were there in the middle of a difficult immigration to Portugal, working and sometimes overwhelmed. However I think it was key for us to have chosen that place, as it nurtured us every day in so many ways.
With regards to the house, it's super comfortable and just as it was listed. My partner and I disagreed on some details like whether the salamander is a good choice to heat the place. But I think it's all a matter of who you are and personal preferences, and besides there's also an electric heater available wich works perfectly for the bedroom. And I liked the salamander a lot ;)
The kitchen is perfectly equipped, the small bathroom is always generous with hot water, and the house in general is comfortable as long as you don't ask from it what it cannot give. It's thought of as a comfy place, a base to enjoy the surroundings, and mostly for a couple. If you intend to work in an exclusively remote fashion, it may work well depending on whether you need a perfect pristine internet connection and energy supply. I'd say there's a 90% internet uptime and 95% energy uptime, which was fine for my work. Cell coverage is dodgy, and we almost couldn't use it inside the house, but I was able to use it in the surroundings, like the entrance to the village, and around the cliffs by the sea.
Overall it was an extremely positive, enjoyable experience, plenty of little memories that won't fade away, it was a very special time, and I hope to return some day. I'll definitely recommend Barra Mansa to everyone I know. There are beautiful places at walking distance, but I would recommend to have your own transport, because the whole of Sintra is like an enormous living book where it seems that you can never end to be in awe, discovering one marvel after another. Enjoy!