It has to be very good butter and whipped a little more than what they did. You can use whatever coffee you like and the strength to your liking. But it does have to be whipped well and then it is like a latte. The bubbles should have been very small and tight. That looks like it was only stirred or shaken.
Yeah, I believe when it comes to a good way to make it, the taste will be awesome. Unfortunately in an ordinary coffee shop that offers cheap prices, we can't be expected that thing :)