We had a great time in Christel's Alfama apartment! It's small, but has everything you need.
Perfectly located in the middle of buzzling Alfama. However, if you are looking for a good nightlife, we would recommend Bairro Alto or Cais do Sodré. Check in went smoothly, but we did miss personal contact with either Christel or someone else. Something we appreciated in former Airbnb's. We could contact through airbnb, but for (potential) urgent matters this wasn't ideal.
Kitchen has everything you need and the wifi is good. The mattresses were a bit too soft for our taste. One of us has severe back problems, so this was a bit of a disappointment.
Our plane left in the evening, but Christel allowed us to keep the luggage in the room. This was very convenient. So with some minor points of improvement we had a great stay in Lisboa!