First of all I have to commend Hela and Jiri as hosts, they were so nice and quick to respond to our requests and questions! Secondly this is by far the best place that we have stayed in Prague up to now (for two of us even better than far expensive hotels) and we are here at least once a year for the past couple of years. The apartment has impeccable interior decoration, is sparkling clean and has (literally) all the amenities that you might need.
Just to refer to some of the pervious reviews: this is a very central location and a busy street, so don't expect perfect silence with open windows. However you close the windows, turn on the AC and voila - problem solved, you have peace and quiet.
To sum it up - this is a perfect AirBnB rental, a wholehearted recommendation!!!