If you live in an area with lots of predators they r good because they will face off with the predator.vIn there mind it's there dutie to protect the flock. There also nice because they finf feed for the hens when they free range. I guess there also really nice to have around and watch roam my yard.
Also, even if you burry a wire undeground so animals don't get in, it won't stop foxes. I put mine more than a foot in the ground and it still dug it out. I managed to get it before it killed my birds. I have had a bobcat rip open my wire as well but it push through the pophole. I was lucky becausen I shut it due to the negative temp. the night before.