I absolutely love Kaboom shower tub & tile cleaner! In fact, I love it so much that I use it on nearly every surface of my entire house. Not only does it smell great and fresh (not like a bunch of harsh chemicals), it makes getting out some of the toughest stains and built-up grime a breeze. I sprayed Kaboom on some of the stained spots on my countertop and let it soak for just a couple of minutes before wiping the areas clean with a wet cloth. Those stairs were magically gone! Thanks to Kaboom, I can finally feel like I have made visible progress cleaning, and I can actually enjoy cleaning again. My biggest problem is that I keep running out of places to clean. Thank you, inventors of Kaboom!