We found Alessandra's place to be a good location to explore Lisbon from if you want to stay in the Alfama district. We arrived via Santa Apolonia station and found the place within 10 minutes. It was about a 15-20 minute walk for us into Praca do Comercio but we aren't fast walkers. We also used the metro to get from Santa Apolonia to other locations throughout the city quickly. We enjoyed our stay although we did have a little noise (i.e. heavy footsteps) from the flat above us a couple of times. But nothing more than we expected being right in Alfama.