After reviewing off-brand pet containment systems, and reading countless reviews on this product and others, I decided it would be worth the few extra dollars to have the peace of mind this containment system would provide, and the excellent customer service the company provides if something goes wrong (per other reviewers). We live on acreage, mostly field fenced, but the driveway portion that leads out to a busy blind corner country road was the worry. We adopted a new pup for our son, and rather than deal with the grief a premature death-by-road would inflict, we decided this system would provide the boundary needed. It took one session of training with the flags, and one time of letting our pup get the static correction, and that was it. Now the dogs (we purchased a second receiver collar) know exactly where they should stop and haven't tried to cross since. They are allowed to run free on our acreage without worry that we will find one or both flattened on the road. Because we were covering about 5 acres, installation took a bit of time. We alternated between zip-tying the wire to an existing hot-wire fence wire, as well as digging and burying it a couple inches down in some areas. To protect from the gravel on our driveway, we inserted the wire into a length of old garden hose and dug a shallow trench across the driveway for the hose to lay in, securing it with landscaping staples on either side. Works great! The purchase was well worth it.