We are getting a very nice, new butter at Costco; and....it's from New Zealand!
A pretty good review HERE:
OK, but does it taste as good as Kerrygold? Actually, I think it's better. The first thing you notice upon peeling back the foil is that the Kirkland grass-fed butter is an even deeper golden color than the Kerrygold butter (something I didn't think was even possible!). First, we tasted each butter on its own blind (meaning we didn't know which butter was which), and all the tasters agreed that Kirkland's version had more butter flavor than Kerrygold."

A pretty good review HERE:
How Does Kirkland Signature Grass-fed Butter Compare to Kerrygold Butter?
"But the biggest difference between these premium Costco butter offerings? The price. At my Costco 4 bars of Kerrygold (8 American sticks) costs $15.84, while the Kirkland Signature Grass-fed Butter costs only $12.01 for the same amount of butter. That will save you almost $1 per butter bar which, in this time of rising food costs, is a pretty big deal.OK, but does it taste as good as Kerrygold? Actually, I think it's better. The first thing you notice upon peeling back the foil is that the Kirkland grass-fed butter is an even deeper golden color than the Kerrygold butter (something I didn't think was even possible!). First, we tasted each butter on its own blind (meaning we didn't know which butter was which), and all the tasters agreed that Kirkland's version had more butter flavor than Kerrygold."