My husband and I stayed for 5 days at Fabiola and Antonio's. The apartment is in a great location in Alfama. It is small, but was adequate for our stay and had tons of charm. The bed was super comfortable. Though it is very close to the street, it was very quiet in the evenings.
The communication with the host was great and we were met in person by Carlotta, who did a wonderful job explaining how everything worked in the apartment. One of the appliances stopped working during our stay and was very quickly replaced.
I would definitely recommend.