I am slightly puzzled by the popularity of this prog, admittedly having only tried the free version which only works on max 1024x768 image, ie not on a full size one. Apart from that, it didn't seem to do anything that careful use of median didn't do, ie noise reduction is still at the expense of sharpness.

As noise is usually only bothersome on large areas of (should be) same colour, the median or similar noise reduction filter can be applied on only the selected area

Am I missing something?