It is in the CR and it's the usual DVC resort items. They had laundry supplies, lots of snack items, bacon, eggs milk, deli style meats and cheeses, breads, donuts, drinks, alcoholic drinks, juices, frozen foods (like lasagna). That kind of stuff.
I think it's also called Fantasia - I think there are 3 of them in the CR (or at least 2). Fantasia Marketplace, which sells the sundries & stuff and a Fantasia in the middle (it has 4 entrances) - which sells collectibles. There is a 3rd store which sells clothes (I thought it was called Fantasia too).
They also have candy (the kind you can buy inside the parks). Fresh fruit, canned goods, etc.
If you are looking for more variety, I would suggest Garden Grocer. They deliver, its pretty reasonably priced, and bell services will keep your stuff cold if your arrival doesn't work out.