Susana met us at Portas Do Sol, where the tram stops, and walked us to the apartment down several flights of stairs. We would not have found it easy to locate on our own but once you knew where it was, the apartment was simple to return to (but usually uphill...!)

The apartment itself was gorgeous, with stunning views over the rooftops of Alfama down to the River Tagus. It had everything you needed and the bed was big and comfortable -just what you need after a day rambling around. Susana recommended several places of interest, including a great local restaurant called Alpendre which we went to twice.
There is so much to see in Alfama that we spent most of our time walking around this area. The Fado museum is fascinating and the Pantheon worth it for the views from the top. The castle of S. Jiorgio is about a 15 minute slow walk from the apartment. We did spend a day in Belem and loved the museum of contemporary art which not only was free admission but had a great bar/cafe which was used mainly by locals.
It was cold whilst we were there in January which meant that you wouldn't want to sit around in the apartment during the evening because it was too chilly. However, the bed was toasty warm so a good night's sleep is guaranteed.
We can recommend the apartment wholeheartedly but it is not suitable if you have any mobility issues.