It is a Swiss Knife. You can read this slogan on the official site

I use this program for the next reasons:
- rectification
- reprojection
- swiping with any online source or my maps!!!
- colour enhancement for Garmin device or deleting of watershed
- cropping or combining
- adding of my vector data
- quick generation of sample fragment in JNX format for review in devices or progs!!!
- saving of a very big project for next generation to JNX and IMG

I do not any other program that can do it as well quickly and simply?!