Can't see the forest through the trees, huh? You're the one who just verified that the Zestra ratings on the GMarket website were bad. Those are ratings of the seller, not of the product. Korean eBay is my impression. And I don't know what you're looking at, but after conducting the search for Zestra, the one entry with a meaningful sample size (50 reviews) shows a 4.9 out of 5 rating.