They included a real customer review from Amazon:
“This stuff [CLR Brands] seriously works — it made quick work of hard water stains, rust marks, and mineral buildup that I’d been scrubbing at for weeks with no luck. I used it on shower doors, faucets, and tile, and everything looked noticeably cleaner within minutes. The spray bottle makes it easy to target problem areas, and it didn’t have an overpowering smell. If you have hard water or older fixtures, this is a must-have in your cleaning kit.”
Read more from the article here.