I've been there already.

I followed the reviews and they said it was good, but it wasn't that great. It's passable. In the picture, there were sesame leaves, but in reality, there weren't any, which was disappointing. However, it's still good that they have a wide variety of items to choose from. Most importantly, the bingsu was delicious. They offer two flavors, so if you're curious, you should try it. The shop is big and not hard to find. Give it a try!