The Ana's room in Belem is a great place to stay in Lisbon. The room is exactly as described. It's not big, but cozy. The location, just in front at the famous Pasteis de Belém is near to some Lisbon landmark (Torre de Belém, Marco do Descubrimnto, Mosteiro dos Gerônimos, etc.) and it's easy to go to anywhere with buses and trans just at door.
I hadn't found Ana personally, but were well received by her mother.