I used mine plenty when i had it! And they did make a difference, especially in fog and snowy conditions.
I have never had any use out of any front fogs ever and i have driven in some pretty hairy conditions. I always found they made matters worse by creating a lit up haze around the front of the car. I went for Xenons on my last car which were fantastic and made the fogs just useless.
Just realised you live up by Ayr You must get some stinking weather up there!