We received our Groundskeeper Kit about 1 month ago. Our Golden Retriever (about 16 months old) who was so fond of escaping over or under the fence is now contained. Within 2 weeks she had learned to stay in the boundaries. Before installing our kit and the completing the subsequent training she would scramble over or under the fence or bolt to the fence, barking when one of her favourite temptations appeared. I was a little concerned that she would forget the boundary and just run straight through, but that hasn't happened once. She is tempted everyday by people walking their dogs, by birds or helicopters flying overhead and by our neighbour kicking the ball for their dog, but she still does not attempt to cross her boundary. It's nice to have her laying at the back door again, ready to play and chase the ball and spend time with us rather than being contained for most of the day.