We really enjoyed our stay at this apartment. The host is really friendly and answered our questions in time. The apartment is located in the center of Alfama, and everything is nearby including the main castle and other attractions. The sea and the harbour are really close, and the sunset looks amaizing from there.
Note, that the neighborhood might become a bit noisy during the night. If you want to do remote work from the apartment there is a comfortable chair and a table, but the internet connection is not fast enough and not stable all the time. However, it is a nice house, always recommend :)