Very nice apartment in the middle of the historic Alfama neighborhood. Surrounded by activity but not loud at night. Clean, bigger than expected. Well stocked kitchen, strong WiFi, good shower. Washing machine and dishwasher. We were told we could leave dirty dishes in the sink when we left, which we appreciated.
Note that it is on floor 4 (5th floor for us Americans) with no elevator, but if you can handle walking the stairs and hills of Lisbon, you should be fine with the climb. Good air conditioner but note that it is not in the bedroom, which is fine as long as you leave the bedroom door open at night. Overall we enjoyed this unit and the friendly hosts.