I've had the Pet safe system delivered around Mid March. We set it up, and the first thing I noticed that it was a bit wishy washy on the boundary, I understand that there is a 2 foot boundary line however it's still a bit off especially with the height difference btw my two dogs. But it's not unmanageable. So far it's working well. Our dogs are the world’s best con artists and have Houdini style escape methods. These dogs are masters at getting through the current fence weather it’s over or under or just through, they’ll do it. Which is why we went this method and a wired system would not work as our front yard is under construction through VDOT. So we’ve gotten through the training and they picked up VERY FAST. Pretty much after a week they figured out the limitations of the system. My golden has the stay and play Stubborn collar because he’s very head strong. My Lab Hound has the normal collar. We’ve been using it for about 2.5 weeks and just had its first charge early last week.