An amazing mansion, an artefact of imperial opulence long gone hidden among the tall trees on Sintra's hills. The panoramic view from the pool is just amazing.
We were a group of 4 (1 child) people and had the luck to have no other guests around. This was very pleasant, as we felt like guests, but I can imagine that with more people not everyone may enjoy it. The rooms are actual rooms of the old house and the presence of maids and gardeners doesn't give it more of a "hotel feel".
If spending a night in a historical house is your thing, definitely visit Quinta De São Thiago, you will not be sorry.