I've never used that particular brand, but I have used other high priced brands before I learned none of them are any better for the deer than mineral used for cattle (which is much cheaper). In fact its very difficult, if not impossible, to find any evidence that mineral supplements do anything to help deer at all, except provide a source of salt. Deer get most of their minerals from food sources. I still put out minerals for getting pics on my cams though.
Here's the mineral content of $13.00 per 50lb. trace mineral salt used for cattle, it's nearly identical to the one you're talking about.
