We have been on the Invisible Fence for over 10 years. It was the best home improvement we ever made. It's so great to have them come and go at will knowing they are safe. The other benefit is Brodie. He is always so responsive and helpful. We recently got a new shelter dog who was deemed a "runner". Brodie sent a tech out to get her trained the day after her adoption! The trainers are thorough and gentle, the dogs are not traumatized in the least. I cannot recommend this product and this business enough. Every pet owner and pet deserves the peace of mind provided by Invisible Fence of the Big Sky.