I love this place for their banchan and other foods. I don't actually purchase my normal groceries from Greenland because I find that their prices tend to be a little higher than the other Asian markets in town.
I am constantly getting their cucumber kimchi, spicy squid, and japchae. They are all very tasty, and it's the only place I know where I can get them ready to go. Make some rice at home and you've got at least three meals!