I had a positive experience with the host and apartment.
Communication with the host was efficient and responsive. He met me at the apartment for a brief orientation and that was my only interaction.
The apartment was comfortable and photos accurate. While I think there are more charming apartments in Lisbon in similar price range, I was satisfied with location, cleanliness, size, and the basic decor. Also it was a very busy tourist season so I was pleased to stay in alfama at this reasonable apartment.
One major drawback was construction noise.
I stayed 5 days and was one person.