Mx G.
Yelp
it is at least ok. the clerk (owner?) is somewhat snotty. particularly to Americans. But, not so snotty you cannot get drop. she likes Dutch children and can be kind, Ive seen it with my own eyes.
The people passing by the drop section at Albert Hijn (grocery store) are far nicer, but the selection is more limited. Perhaps start there if you are a novice, as the drop at Albert's is hard enough for novices. You have to really like hard licorice or like to dislike it a lot, to make it worth working with her. But, truely great, almost curated selection. does not give samples nor make them (e.g., 3 of 10 kinds). you have to buy 100 g of a flavor. maybe 50g. there was often a line, but a short, fast one. so, buy some, sample, come back for more samples until you find what you like or can really dislike.
worth going to and treating as a museum of licorice, or as they say, drop.
I would go back, but pretend to be Dutch or non-US.