Well, if I were trending UOAs, I would want to get a VOA of the same oil from the same lab I'd be using to do the UOAs. That certainly helps, particularly noting this product as a 3 ppm starting point of silicon, for instance.
As for this oil in specific, I'm sure it's a fine oil. I just find the price a little overwhelming. Check their website and convert it to Canadian funds, and check shipping, or whatever else, and it gets worse. The main thing that bugs me about Joe Gibbs is that they seem to have a solution to every problem, real or imagined, and tend to what an exceedingly high price for those solutions.