From a customer's perspective they appear to be highly adaptive. I've experienced a range of changes to the workflow, eg prime now orders will replace items with near substitutes. You get a time sensitive text message to confirm whether you approve of the replacement. Otherwise they'll make the choice for you upon decision timeout. Non essential items still come, they appear to be pushed back a month. This seems to be contingent on where the item is in the warehouse network. Stuff that shipped closer to home seemed to be a handful of days delayed or something. Jury's still out for us on how subscribe and save will behave since we are awaiting the next batch. Amazon has also implemented quotas on all sorts of products. Grocery delivery orders used to reset their clocks at midnight, now they seem to randomize it since people caught on and jumped in on the order openings. They've been rolling out a steady stream of these workflow changes; I find it very impressive and dynamic that they can carry this out in near realtime.