Causes more problems than its worth. Some of the worst issues: 1. It won't let you order from locations if its too close to closing, even if you're close enough to pick up with plenty of time before they do. 2. Support is nonexistant. Got overcharged so I submitted a support ticket, but never heard back. No support for checkout issues 3. The rewards and challenges don't always apply the discount. 4. Still have to give your name in person for pickup, so you still have to wait in line.