Lillian's place is right on the main street in Rossio. You couldn't ask for a better location to get to anything you want to do. I came here as a solo traveler and I was able to walk or take the trolley/subway or train to every location I wanted to go to. Subway if about 3 blocks from here to get to the airport. Tram 28 trolley was a short walk to get to the start of the route where its easy to get a spot on the tram.
The apartment was exactly as the pictures were shown, it was very clean, well equipped and a comfortable bed. I didn't do any cooking but the kitchen was a good size to be able to if needed. You do need to walk up 3 flights of stairs but I would imagine that is the case for most apartments in Lisbon.
Alfama was my favorite neighborhood which was a 10 minute walk uphill to this beautiful neighborhood. You will have a lovely experience in this apartment so make sure to book soon as this apartment will most likely book out fast!