I ran it on my computer just to see what it would say. It claims that all of my chipset, audio, LAN, wireless, video, IDE, SATA and USB drivers are out of date, even though they aren't. Of course, it wants me to buy the "pro" version of program before it will let me see what these supposedly newer drivers actually are.
After my brief, non-scientific investigation, I'd say it's a waste of time and certainly a waste of money.