For me, the fast shipping is at a point where more reliability would be better than the current speed of delivery. If it's on time, I'd prefer to get a package

For me, the fast shipping is at a point where more reliability would be better than the current speed of delivery. If it's on time, I'd prefer to get a package in two days than have it delivered at 10pm in one. If it's behind the deadline, I'd prefer a more realistic deadline than emails about slipping on the schedule.