APARTMENT: Beautiful inside, very very clean, with plenty of space. It had everything we needed and even some things we didn't use (TV, full kitchen, washing machine)
HOST: Check-in was quick and easy. Joao was easy to contact, responded quickly, and even called us a taxi for our early flight out of Lisbon.
LOCATION: Good, but not as great as we expected. There are some good restaurants and cafes around (definitely go to Bistrô & Brechó Gato Pardo for dinner and Marcelino Pão & Vinho for breakfast or lunch), but the apartment is not as centrally located as staying directly in Alfama or Barrio Alto, for example. Lisbon is very hilly and not very walkable, so be aware that a half-mile walk will be difficult and take longer than usual. We ended up using the trams, taxi's, and Ubers more than walking, but all are very cheap modes of transport to and from the apartment.
OVERALL: Would definitely recommend. Great value for money and the apartment looks exactly like it does in the pictures. Just be prepared to take public transport to neighborhoods like Baixa Pombalina, Chiado, Barrio Alto, etc.