Maria was a very fast host to respond. Didn't have the chance to meet in person, though.
Only thing that wasn't so pleasant is: humidity! There is a wood stove to warm the room, but nothing much to make a fire, so you have to buy your own wood, which is kinda unfair in my opinion (why not provide a heater??).
Besides this detail, we had nearly all the minimum stuff required to make our 5 days stay. The scenery is very nice, it's peaceful area (bear in mind it's 2 hours away from Lisbon by transportation and the bus frequency from Sintra to Mogaito is not so great), nice to walk around, spar market near by to buy what you need.
You have very stunning view point to check out, Maria's place is definitely nice to stay at spring and fall. Having a car will make your stay easier too.
If you look for a quiet place to retreat for a few days, this is the place to be.
Thank you Maria for your helpfulness and to let us stay at your place.