We've had our invisible fence now for one year. We live on an acre property in Gilbert and Ian was great.
We priced other options, and by far invisible fence met all of our needs the best. We didn't want to risk the dogs digging under the pasture fencing and invisible fence solve that problem.
After a year everything still works fantastic. We found that after the first few months we could let the dogs have a break from their collars and they would still respect the boundaries. So if you do happen to forget to put their collars on, they will still keep their distance. Just a great product. Well worth the money!