We had a great time at Katerina's place. It's a lovely apartment at a great location in the city center. We didn't have to use public transportation once, everything was within walking distance. It can be a bit on the louder side if you have the window open, but it was totally fine when closed. Room was very clean and had everything we needed. Parked our car at the near-by Mr. Parkit, which was very convenient (around 22 euros per day). We can really recommend staying here for a sightseeing trip in Prague.