Libuse was very quick to answer our request made only a day before our arrival. She gave us the best way to get to her place from the main train station which was very helpful! She made us very welcome and gave us very practical info about the city (map, close restaurant, etc.)
The flat is as described in the ad and very close to the tram stop that goes right into the center of Praha, which is very convenient. The earea is mostly residential but there is a mini market downstairs (careful not open late, though).
All together, a very pleasant stay. Thank you Libuse!