Krown - Would you proceed ?

[YodaBird]

I'm considering getting Krown applied to the car, as I recently went to a Krown Dealer, he told me where he has to put holes, the door side panel, and take out to plastic interior covers to spray inside, of course putting them back on. The car has presently, no rust, which as he said is good, which means Krown will be the most effective.

Would you proceed with the drilling of, what he said approx 2-3 holes, which he said get covered up ? I don't want to see rust spots, not even a tiny one anywhere.