My stay at Carla’s place was great. The accommodation is clean and neat and in the heart of Alfama. It is quiet and secluded. My flight had been delayed so I arrived nearly midnight yet I was met by the host. In addition taxi transport to and from the airport was arranged excellently. It definitely made my time in Lisbon very enjoyable.
Do note though the steps leading up to the apartment on the 2nd floor are quite steep, so heavy luggage or bad knees would be a problem.