This flat is at an AMAZING location - it is 5 minutes to everything. Jan was very easy going and friendly. No hassles with the details, which is what you want when going on vacation! My wife and I are 32 and 26 years old respectively, and we found this apartment to be a perfect accommodation for our 3 day stay in Prague. We saw everything worth seeing - as I said, the location is perfect - old town, Charles Bridge, and The metro are all walking distance - and you can even see the Castle from the front of the building! Word of advice though - ask for more pillows and towels! :)
We highly recommend this place to others.
Thanks Jan!