Observation and Review:
You launch the program, and everything from your desktop disappears except the Dock and the menu bar on top of your screen. Double-click anywhere on the desktop, and a window appears that has all the files that was on the desktop before. Close the screen, and a clean desktop. Double-click and the window's back. The one icon that's not "listed" on the desktop window is the HD icon itself. Not needed - you're looking at what it opens if you click on it already.
When I first tried it, my desktop changed to an Apple desktop, but I was quickly able to change it back to what I wanted. In addition, the menu icon that's added at the top of your screen's menu bar allows direct access to the desktop/screen savor preferences as well as display preferences.
I like this! I like this a lot!