“we cannot tell you exactly when your shipment will be delivered, but it will be between 8 am and 7 pm…”
Look, I like the notification piece. It’s a wonderful value-add to my customer experience. But it almost makes me even more annoyed to know that you are giving me an 11 hour window. Why not just wait to get home to see the little post-it sticker on my mailbox that gives me a FOUR hour window for the following day?