Very homey and pleasant apartment. Both the bedroom and bathroom had been meticulously cleaned before my arrival. There is a train stop a few minutes walk from the apartment (which goes to downtown Lisbon as well as Sintra), in addition to a cute cafe and small shops.
Di is a very thoughtful host -- she gave me a lot of tips about local sights and went above and beyond to make sure I was comfortable. I would absolutely stay with her again.
The apartment is home to two cats. They have resting grumpy face but are very affectionate. :)