I've only done 600 rounds in mine. I had primer problems the first time I used it but fixed it with this:
http://youtu.be/aB1cTeRz7sI
I have a powder cop but find the drop to be very reliable and am thinking about adding a bullet feeder. Not the Hornady $300 one but just a feeder die with some PVC pipe. I don't mind feeding cases but dropping in the bullets get monotonous!