“Outstanding, had them installed by a Cadillac dealer, works great.”
“Orders are always taken, filled and shipped on time. Check Corporation is a good source of information on cars…Warranties are always handled professionally… Sales makes sure we always have information to sell product.”
“Detailed, easy to follow instructions. Product is great quality. Tried (unsuccessfully) to install a competitive product, and the difference in the product is quite noticeable. Customer service was personal, responsive, better than most. Will definitely buy from Check Corp again. “