I thought mine was great until recently. The only losses I had inside the fence were 2 chickens lost to hawks last winter. We had a spring flood followed by a long drought. I tried to move one post several weeks ago and it broke because the ground is like cement. It has been sagging some but I really did not know how to rememdy the problem. So when I had a grown hen disappear from the run after an instant molt, I was puzzled as to what got her. The hawks killed and ate part of the bird in the pen so I was thinking it was a dog or dog family critter that had managed to jump the fence. We set a trap inside the fence and caught a large opossum and my neighbor saw the hen at his house later that day so she probably flew over. I cleaned leaves from the fence line even though it was working when I tested it. I also managed to straighten up the sag. I checked it later and it was not working. Someone on here told me it might be because it was so dry. I want to know how others like or dislike their electric net fences. I am sure some others would like to know also. Mine is the shorter (42in?) from Premier.