I've been using Koh daily for just over 3 years and it's great. I never thought I'd use it as much or be as impressed by it as I am. My stone bench tops are clean and streak free, my showers take zero effort to clean (and I don't gas myself out with strong chemicals), my oven door looks like new and it literally takes less than 5mins to clean off all the baked on grime. And I love that it gets crayon off surfaces too! I'm very happy with my Koh products and love it even more that it doesn't smell and it cleans every type of sticky, greasy, scummy mess that happens in a busy household.