Pros - Great location in Rossio! If you are flying into Lisbon, it takes about 35 minutes via the Metro from Aeroporto, changing at Alameda to Rossio station. After exiting Rossio, it takes about 5-8 minutes walk up a few flights of shallow stairs (I would estimate approximately 4 flights equivalent) to the front door of the apartment. As Lisbon is a very hilly, walking uphill is unavoidable. If you have a lot of luggage then perhaps a taxi would be a better choice. The apartment, however, is on the ground floor. Perfect for a single solo traveller with basic cooking amenities (I didn't do any cooking) with pots/pans/salt/pepper etc. Bathroom is adequate although a bit small for taller people. The washing machine is a plus and appreciated. I can't find the "dryer" function on the washing machine despite the help of Google Translate and I suspect it isn't a dryer, which is not a huge issue. There is a laundry drying rack at the back of the apartment which I used instead. As Flavia is studying elsewhere, she was unable to meet me in person but I met lovely Ana who handed me the keys and showed me around the apartment. Even though the apartment is on the ground floor and restaurants around, it wasn't noisy at all and I slept well.
Cons - The wireless internet was dismal and to put it bluntly, non-existent. I note similar reviews from previous guests. I communicated this and the lack of dryer function) to Flavia without a reply from her.
TLDR; Great location and amenities. Would recommend if you don't mind going without internet.