This is great! I don't have (and have a hard time locating) the suggested whisky, so I used an Ardbeg Ten - which I adore and built it in the glass with a big ice cube. So simple and so delicious!
I think this depends on the ingredients. The apple juice varies in tartness/sweetness and mouthfeel. Orgeat (I do have a bottle of Giffard's but not at this home, and I prefer my own) can be more or less umami, and more almondy (?) or not. This has a great structure, but the ingredients will make it.