I have been using Koh for several years now and wouldn’t be without it. It is amazing for so many things and quick and easy to use on a multitude of surfaces. I keep a spray and a cloth in the bathrooms, kitchen, utility room and even in the car. I also have three floor mops and grout brushes.
Every time I clean my oven I’m still amazed that something that looks like plain water with no chemical smell can give such good results. Brilliant stuff!