So far so Great. We used a trencher to install the Wire. We have about 1.5 acres aND it worked like a charm. My husband had the fence up and running in about 4 hours.Our Lab took to the fence very quickly. Follow the training guide. They give step by step instructions on how to help you dog learn the boundaries, etc. This worked and saved us lots of $$$ when compared to the companies that do the work for you.