I've used it and generally liked it. Rawlings makes a similar product. The only reason I don't use it more is the price. The amount in the container didn't last too long and I use lots of glove conditioner! But as far as the results, no complaints.
One thing I wondered about this product: Lanolin, I can understand. But vitamin E? What's up with that? Are you trying to enhance your glove's sex life?