Very limited spaces. If the driver gets to the locker and there’s no space for your box, you may not get your package. It happened to me. I ordered something to be delivered to the box, but when the driver go to the location, no available slots, so my package disappeared. I’ve been calling amazon, but seems that they don’t know what happens when the package gets returned to their warehouse. So if you can, don’t use their box until Amazon Logistics can fix their glitches. Conclusion. My order was returned to seller and according to the email from Amazon, I should receive my refund in 60+ days.