Kerrygold (and other imported-to-US/European, “fancy,” etc.) butter just tastes better. It has more fat content than land o lakes, for example, which contributes. The unsalted version is also cultured, and that makes a difference too. It’s definitely worth the price in any use where the butter flavor is important. In baking, maybe it’s not as worth it, but even then I’d still use it over a US brand.