I am hearing impaired and I've always struggled a little with tuning, as my ears have a hard time discerning the subtle differences between tension rods when tuning manually. This product makes it an absolute doddle. It takes some getting used to, as sometimes when you alter one tension rod, it affects the others next to it, so you have to go back and double check, but you soon pick it up. I never used to look forward to reskinning my entire kit, but this has made it a stress-free experience and my drums have never sounded so good.