Electric Fence? Yes or No? Opinions?

I have a wireless system that I have yet to install. It creates a field that the dog can stay within and the dog gets a shock if it goes beyond. It is a signal rather than wires. I keep thinking about installing it, as it is easy, but I just haven't tried it yet.

I spent a week with friends, just last week and they have two Chesapeake retrievers and an electric fence. It worked fine with them. The dogs stayed within the areas just fine. I guess lots depends on the dogs and how badly they want OUT.

I think Prue would do just fine with the wireless system. Prue doesn't like to be outside without me, so, so far there hasn't been any need to use the wireless system.

I would consider the underground if I were you.

I also have friends whose dog doesn't know that the system isn't turned on and it obeys the old rules, not going past the wired area. It's really funny to watch the dog come to a screeching halt.