Actually YES the program does do what it says. As ideal as it is to obtain the drivers from your manufacturer I found slimware actually finds more updated better working drivers.
For those who do not know, slimware was acquired by AVG and they use it built in for their driver update utilities.
a PUP is a potentially unwanted program, this does not mean its bad for your computer.
Seeing that AVG owns it, and it works better than the manufacture's website in most cases that I find. I keep the installer around for quick and easy reinstall of drivers without all the bloatware needed from different vendors. It can update systems not
made by the cookie cutter builders like HP and Dell without having to hunt down 20 different vendors and pray they applied their update to your product. I find most the time the vendor of additional hardware fail to update their drivers section with the latest
chipset drivers and intels detection utility although does work in some cases is fairly junk.
All in all - AVG owns it, it's safe to use, and works well. Use it and uninstall it when everything is updated.