Delicious and light. I use Mizkan rice vinegar, there are two versions - seasoned and unseasoned. If you use the seasoned variety like I did here, you do not need to add salt or sugar. I simply sliced the cucumber, added the vinegar and grated the ginger and that was it for a fab salad!
As a tip, freeze your ginger and take it out of the freezer to grate as necessary (no need to wait to thaw out, just grate and pop the rest back in the freezer). Ginger grated like this will be finer than you can chop with a knife and give a lighter background finish to your dish.