Sarka's place was incredible. It was very specious and there were 4 of us staying there.
We had ample room for sleep and lounging. The apartment is situated in a very central area of Prague as Charles Bridge is only a 7-10min walk. There are also two great currency exchange stores directly below the apartment, one of them is open in to the evening. An extra bonus is the 24 hour convenient store that is also directly below the apartment.
Sarka is very friendly and was waiting for us at the apartment as our evening flight arrived. She was very helpful and offered several tips regarding food and things to do. She kept the place very tidy and it was truly an enjoyable experience. I would not hesitate to stay at Sarka's apartment again and would definitely suggest it to anyone!