It was a nice stay in the center of Alfama. It is a quiet area with locals (our stay was in December so not so much tourists), with shops and cafes. Be ready to climb the stairs:)
The hosts were very responsive, all the communication was very smooth. The flat is small but cosy, it is enough for two. There's not so much place for your luggage and clothes, but i guess it is not a big problem. I would recommend the host and flat for sure.