The yuzu is extraordinary in its fragrance and beautiful floral, bright citrus flavors. It is hard to substitute anything and have it come out the same. It will just be a different cocktail. Potentially delicious, but still different. A fresh yuzu will usually be significantly more bright than the bottled juice. For the gin, we prefer a gin like Hendricks or Tanqueray Rangpur for this cocktail. There are quite a few Japanese gins which work quite well in this cocktail too.