RX100 Clear Zoom

Last Spring there were several discussions about the RX100's  new "clear zoom" technology.

This feature effectively doubled the zoom capabilities of the camera without affecting quality and photos from tests demonstrating this clear zoom capability were pretty impressive.

This extended zoom was described as being accomplished by a  software algorithm and not the common "digital zoom"  available on most digicams.

How good have RX100 owners found this feature?

Any hands on users comments of this feature  would be appreciated!