Does anyone have any experience with Wend Chain Wax?

I won some of this stuff at a local race, but before I apply it, I want to get some feedback about it.

If you've experience with it, do you have any feedback about the process of cleaning the chain, and then applying the wax?

If you've used it, what's durability like—how frequently are you reapplying (and in what conditions are you riding, etc.)?

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