My girlfriend and I stayed for 4 nights and have quite some mixed feelings about the accommodation. While the location was amazing and the room was clean and had all the basics, there could've been a lot more care regarding the room.
The bedframe was bent so the mattress pulled us both towards the middle of the bed, and the fitted sheet was put on the bed inside out. The locks took quite some force/dexterity to open at times, and the already small shower had a protruding glass decoration that was very cold to the touch. Lastly, communication with the host was very non-personal (only copied and pre-written messages).
Additionally, though this can't be helped: keep in mind that Alfama has old buildings, so surrounding sounds tend to be loud. The atmosphere in the neighborhood is amazing, though.
There is some stuff to work on, but our stay was nice and the view from the room is amazing.