I did have a problem with a ring of orangeness on one bowl. So far I’m happy.
I started using krazy clean pro about a month ago and it working much better than I expected…. Highly recommend.
One month in and no scrubbing needed!
Our toilets would usually have scum ring or whatever ring you would want to call it from the wall water at least four days after cleaning no more ring marks toilets are way cleaner . Very Impressed it might be ordering some for my mom