We arrived at the accommodation late at night and Luisa had no problem with receiving us at that time. Her helper, Miguel, was waiting for us and told us about some of the things in the city. They were both really kind.
The apartment was really good situated (10/15 minutes from praça do comércio), inside the Alfama (which is an incredibly beautiful place). Moreover, the room was fully equipped with all the necessary stuff.
The only not so good thing was the stairs to get to the apartment, it was difficult to carry luggage through them because they were really small and tight. In addition, if you are travelling with someone with physical needs, I wouldn't recommend you the place (for the stairs), and, if you suffer from vertigo, the stairs may become a problem.
The city is amazing and you can walk to almost everywhere from the apartment, so you won't have to pay public transports (well, you cannot walk to Belem, but it is completely normal).