Somehow just about every order I placed that was eligible for Amazon Prime arrived later than if I'd stuck to the 2-3 day free delivery. At the moment I'm waiting on a couple of books I'd normally order from Computer Manuals (they're always delivered next day). The books in question were dispatched from Amazon's fulfillment centre in Glasgow and have somehow got lost between there and the local City Link depot in Glenrothes. How hard can it be to send a box from one side of Scotland to the other?
Utterly useless.
Add to that I find that the royal mail have been saving up packages sent by first class letter post and delivering when it was more convenient to the postman.
Amazon Prime is a nice idea but so dependant on the vagaries of our postal service. I cancelled and I got my money back.