This fence has changed our life. Our high energy GSP was terrorizing the neighbors and running into the busy street a 1/4 mile down our driveway. We live on acreage but she always wanted to go onto the neighbors property looking for bunnies and deer, but would occasionally go after the neighbor dog as well. It was only a matter of time before something bad would going to happen. We mapped out about an acre surrounding our house to give her lots of room to run. We followed the instructions and was nervous to finally let her off her leash, but after getting zapped a handful of times over the next couple days by testing her boundaries, she now knows her reign of terror is over. Our stress level has been significantly reduced, and she's become a much better dog by interacting more with us and spending less time running rampant.