I've ordered a few times from Prime Now and so far it's been a pretty good experience. I like how it shows real time GPS tracking of the delivery driver as well as the name of the driver.

I've put specific instructions on where to leave the package if I'm not there or to give me a call when they've arrived, and so far no problems there. It's pretty easy to associate the courier as a courier since a notification pops up saying the driver has arrived and you can see the person holding a big brown bag with an amazon label on it. Pretty straight forward imo.

So far a much better experience than OnTrac leaving shit wherever they please.