My girlfriend and I had a great stay in Pedro & Sofia's loft in Alfama. We had been debating between this and another airbnb near Rossio Square and are so glad we chose Alfama. The neighborhood is incredible to walk through and has some great restaurants with Fado (and Pedro and Sofia left us some amazing recommendations). The loft itself was clean and very nice, with kitchen/dining room/living room on the main floor and bedroom and bathroom upstairs. It is close to a bus stop and within walking distance to other more central areas (Praca do Commercio is maybe 10 minutes on foot). Pedro and Sofia were going to meet us and show us to the apartment, but because of our arrival time it didn't work out-- if you have to find the apartment on your own, I'd recommend at least looking at a map of Alfama first, as it can be somewhat tricky to navigate if you're visiting for the first time (but definitely worth it!). Highly recommend!