I was notified of delivery happening today by UPS, no time slot at all just by end of day. Consequently I have waited in all day to take delivery. Just after 6pm I have had a notification from UPS that delivery will now be tomorrow, again no time slot, just before end of day.It's some years since I last experienced such a don't care, arrogant service from a delivery company. All the others find no difficulty in tracking their vehicles and giving an estimation of time, usually within a 1 to 2 hour window, on the day of delivery. Why is anyone using such a poor company to deliver goods to their customers? I doubt there is a significant cost saving by using UPS against more reputable companies.