It works well, but still get a little ring now and then and use a brush to get rid of it.
Excellent product. It’s been a few weeks and there is no ring in the toilet bowl.
I bought the three pack and put them in all of my toilets and they seem to be doing the job but it is still real early in the game. Hard to give an accurate review on a product in the long run when you just started using them. Giving them a go and let’s hope for a winner.