A great location for us as first time visitors to Lisbon. Very clean and a nice comfy bed made for a good landing spot for the hours we weren't out and about. Very very responsive hosts which as an Airbnb host myself was much appreciated knowing the significant effort and attention that can take....much appreciated!
Public transportation was easy...and I would suggest the less than 5 minute walk to Rossio Square is your best bet for getting where you need to using that mode of transportation. It gives you a few exploring routes to and from the apartment and made us consider doing a bit more walking to what might have been a stop or two away leading us to some great discoveries and places to eat we'd have missed otherwise. It was our experience that Uber drivers will NOT pick you up right at the apartment due to the location so best that you go to Martim Moniz for pick up....
In the daytime the neighborhood was full of people and commerce making for an inviting walking space. In the evenings it was less so and may not be a fit for a nervous traveler though we found it feeling quite safe.