We had a wonderful time at Ana & Fatimas place!
It is located very well in the heart of the Alfama. You can reach most major tourist attractions by foot. If your not the touristy type there lots of great places where locals go as well.
Ana was great in recommending places to eat and see. She was on time for checkin, easy to reach and very friendly.
Hot Tip: Rent a scooter from LX Rent just down the road from the apartment. Take it over the "Ponte 25 de Abril" bridge (the one that looks like the Golden Gate Bridge ;D) and go to the beach in the "Caparica" area. The drive is only around 30 minutes and the beach is spectacular!
Would highly recommend this place! Looking forward to visiting Lisboa again in the future :D