The first thing you notice is the final odor (for sensitive noses: stench). Smells somehow lemony, and then not again. The smell dissipated with me luckily within a few minutes, but brushing directly at it was first used to.
I think the cleaning effect even for an organic cleaner so-so. Soak, brush, scrub, can again act, scrub ... it went down quite a bit of lime, the fittings are free of streaks, but my feeling was that a lot of work. On the other hand, I live in one of the areas of Germany kalkigsten - if it is sufficient here, it goes even more so for the rest. And I fight often while cleaning with irritation - which I did not here.
Definitely not a panacea, but a good plus for the acceptable ingredients.