Amazon suggested this was intended to deliver within 30 minutes after the order. You are presumably, barring some kind of emergency, not going to be leaving you

Amazon suggested this was intended to deliver within 30 minutes after the order. You are presumably, barring some kind of emergency, not going to be leaving your place after ordering this service. I don't think the intent of this is to replace the stuff you traditionally order through the mail/courier services over the span of days.