Amazon finally opened its first Amazon Go location in Seattle to the public after more than a year of piloting the cashier-less store. Shoppers with the Amazon Go app on their phones open it and scan the code at the turnstile to enter the store, put the phone away and shop. The phone registers items taken from a shelf, logging it into a virtual checkout, and even removes them when items are put back. Once the shopper leaves, the checkout is paid through the linked account. The store opened the last week of January. It is 1,800 square feet of groceries and quick items – more like a modern convenience store.