Bests & Worsts Reviews from Amazon

This fence works well and the dog learned within days how to use it with very little training. We use it at the highest diameter and it works well. FYI, as it says in the instructions, the boundary can change slightly based on where the car is parked. If the car is parked between the boundary and the transmitter, the boundary is closer to the transmitter which can result in an inconsistent boundary. However, the dog still knows to return towards the house when he hears the warning noise and we have learned to park the car in the same place so the boundary is not altered as much. Also I would recommend to take the collar off the dog at night, also as it says in the instructions, because if there is a power outage the dog will be unfairly shocked since the collar will lose the signal of the transmitter. We also taped over the switch on the transmitter so no one accidentally shocks the dog by turning it off.