Anne's flat was in the best possible location near everything and it was nicely designed and very clean. Our only disappointment was the lack of a terrace as shown in the listing. The communication with her was excellent for the most part.
The flat is 5-10 minutes walk from the central part of Lisbon and there are many restaurants nearby, as well as a very good supermarket. We arrived by taxi from the airport and were charged around 14 euros (without tip). On the way back to the airport we took a taxi from a square 7 minutes walking distance from the flat, and it cost us 12 euros.
The flat is really modern but the doors do not really close or allow for privacy (including the bathroom/toilet), so if you are not with family or close friends you may not like the concept.
Overall, our experience there was good. Thank you, Anne!