Great location and easy to walk to most popular tourist sights. Many good restaurants nearby. Apartment was very clean and well equipped. Nice to have a small washing machine to do laundry.
The bedroom is upstairs via a spiral staircase, and guests have to decide if this is an issue as the bathroom is on the main floor. There is good dim light to switch on to help see at night when using the stairs.
That said, my wife and I would stay here again if we visited Prague.