This is a very nice and cozy place to stay. As others have said you can’t really stand up in the sleeping loft but the bed is comfortable and it’s a nice, relaxing space.
It is in a beautiful part of town with things to see in both directions. It’s a bit of a walk into town but excellent exercise. We stayed for four days; we enjoyed the sights and just being in nature. I would definitely stay here again if in Sintra.