Personally I don't believe the paid driver services are any better than the free ones. Both can seriously mess you up if they offer and you install the wrong drivers but for devices that are not working it may be worth a try. I used
Device Doctor and it found two that worked and at least one that messed up my system so I had to use a restore point in safe mode to recover. So if you are going to try the drivers, install one at a time, creating a restore point before and rebooting after each.
DISCLAIMER: Driver agents very often suggest wrong or out-dated drivers themselves. So, if your sound isn't broken then don't install those on the say-so of a driver agent, instead try to do some research on that particular piece of your hardware, go to the makers site .. or just keep what you have.