Consumers would prefer to get packages delivered to their doorsteps but the coordination of package delivery and consumer availability isn't always feasible. This is the solution to that problem and nothing more. And one of many available options (others being scheduled delivery, dropping off at the neighbours, leaving it at the doorstep, reattempting the delivery, pick up from the local depot, etc).

Since this is a multi-access digital mailbox this can handle more complex workflows a typical mailbox cannot. For example the code can be changed remotely so your access can be revoked (for cancelled orders maybe) or the delivery person re-open the box to pick up a package you dropped off in there for return.

This also opens up potential for further innovations here like RFID or bar-code scanners inside the hubs to mitigate wrong deliveries.

> Yeah, 150$ for some random thing my sister sent me unannounced was not a lot of fun.

That's unfortunate and maybe they ought to allow you to monitor and avoid charges using your app. However, whenever you have a shared and limited resources, charging for overages is not only inevitable but necessary. Otherwise someone who has a holiday home in London can order packages all year around and block the hub until his next visit.

Where Amazon seems to be going with this is improving the state of last mile mail logistics. The logistics are also sensible. Typically it will take a van at least an hour to cover a dozen drops at 5 minutes per drop. This is a real cost -- a cost that the consumer eventually bears. With a sharper focus on the hub model, a delivery van now needs to make a single drop for dozens of packages. These cost savings can be passed on to the consumer.