This apartment is AMAZING!! Sarah and Matthew have done an incredible job creating a lovely atmosphere for their guests. We've stayed in Prague a total of 19 times in the past 10 years and this is our favorite apartment by far. The location is wonderful and each bedroom has an ensuite bathroom, which is perfect if you're traveling with friends. We also found everything we needed to cook with and there were thoughtful little extras in the apartment (Airborne, for instance) for which we were incredibly grateful.
The apartment is also very near a grocery store, lots of great restaurants and a fabulous little bakery that has wonderful items for breakfast plus great coffee. If this apartment fits your needs I woudln't hesitate to take it and would say it's definitly worth spending a little extra money for the convenience of the location and the amenitites of the apartment. Enjoy your stay!