I have been using Koh for many years now and if used with the correct cloth (and dont try and use it with a wet sponge as some visitors to my house have tried to do) will outdo any chemical product hands down. Especially good at removing grease oil buildup on my stainless steel cooktop /splash backs and barbecue. Nothing can compare to the ability of the diamond sponge on burnt in cooking fats Then there’s the floor mops which I use on my polished concrete and bathroom tikes. Also works well on timber floorboards. Then there’s the dishwasher tabs. They work as well as any other big name brand. Absolutely recommend these products. Customer service was brilliant also. I recently forgot to put a promo discount code on my order and paid full price by accident.. I sent an email immediately and asked for a few products to make up the difference. Was very happy to find that Koh had refunded the discount amount to my account within hours. Thank you.