My friend and I stayed at Sara's place for a weekend and had a great time exploring Lisbon. Sara was very quick to respond and the flat was a great price. She also gave great local tips and we were able to drop our bags early, which was very much appreciated.
While we did not stay in the flat much as it was a short trip, there were some things that could be improved. I knew that there was construction going on during work days based on the reviews and Sara confirmed, but unfortunately they also worked on Saturday as well, so we were not able to sleep in past 8am. We were unable to make coffee because it was only a pod machine and no pods, so that would have been nice to know as I love a coffee in the morning (and specifically look for coffee facilities when booking). The shower as others say does not drain well at all so we had to take very careful showers, which was not relaxing after a long day of walking. The location is very close to all the sights and city center which was great, but we did not feel safe at night (on the streets nearby, the flat itself was fine).
Overall it was a budget trip and the flat provided for all of our basic needs for a short weekend trip. Sara was accommodating and very easy to get in touch with, so that was good. We really enjoyed Lisbon - it's such a great city.