If you have access to the stuff then use it. Personal opinions and results may vary.
It is definatly good at what it was designed to do but, like dawn, I wouldn't use it very often. From what I can see from my use with the Valuguard line they make very good stuff. I still prefer
Klasse to their OEM one step stuff and there are a few other things that I've had better luck with off the shelf products, but overall I would say they are good at what they do.