Gardênia is very nice and welcoming host. The building and her apartment are really nice, with true Portuguese feel. Location is a bit out of the most touristic streets, so it's nice and quiet but at the same time it's very close to Alfama and train station if you want to get somewhere further. Apartment was sparkling clean and Gardênia gives great local tips. Totally recommended!
The only minus is that the room doesn't have any outside windows, so there isn't much natural light and it gets quite warm.