Have been using Koh since 2017 or 2018 and I love how it makes my kitchen and other appliances clean. I sometimes used it with removing stains in the fabric too. Mostly, it doesn't have this chemical smells especially I am allergic to chemicals, I sneeze and have stuffy nose right away. So Instead of using other bathroom and toilet harsh chemicals to clean, I use Koh. I hope they bring back the 20ltrs.