Is the Demo Dysfunctional?

In the demo, I expected an intuitive experience like in the Crosspeak plugin, where there is a dropdown list of addresses including an Add New Address option, but no.

When I place an order, then go back through Checkout, my address is not remembered.

I am not getting what the demo is actually about, but I am looking for the Google Autocomplete feature.

The plugin page talks about enabling settings for multiple shipping or billing addresses, but the demo is not an Admin demo, it’s a frontend demo

Is there some part of the demo that shows how it works like the Crosspeak one?