Do windmill mole chasers actually keep moles out of the garden?

My neighbor tried them last year with absolutely no success whatever. However, we have a feral cat in the neighborhood that has pretty much eliminated the moles now.

My neighbor use to have a carnival of windmills in his yard and they didn't do much at all. They actually just make his yard look tacky. I have tried the sonar torpedoes and they work in the short term but eventually the moles become immune to it. I don't have a cat so I can't comment on that, but the only thing I have found that is easy and effective are mole traps. You can check out my mole traps blog