Looks like it's not just Amazon "JD.com Inc and Shutterfly Inc have used the machines as well, the companies said, as has Walmart Inc. Walmart started 3.5 years

Looks like it's not just Amazon "JD.com Inc and Shutterfly Inc have used the machines as well, the companies said, as has Walmart Inc. Walmart started 3.5 years ago and has since installed the machines in several U.S. locations" And they are faster too "They crank out 600 to 700 boxes per hour, or four to five times the rate of a human packer"