Love it but hard to find
I really like this product - truly a labor-free item to use. I just spray after I shower and leave it. I can see a difference the first time I use if after not using it for a couple of months, and I have really hard water (primarily calcium carbonate - no measurable iron). I've tried other products that claim to be similar, but they just don't cut through the hard water film in addition to the soap film. This handles both well. I imagine if I used it more often my shower would gleam - but d'oh - I forget too often. My only criticism is more about the seller than the item itself. I was sent the same product, but under a different label. I wanted the Arm & Hammer product specifically, but I was sent something with a different label. On the inside back label there was a tiny A & H logo - but at first I was quite peeved. After some research, I discovered that the two products are actually manufactured by the same parent company, and are the same thing. So if you order this and seem to get something else, check the back of the label. I did try it, and the one I was sent works just as well as the one in the photo here.
Rating: 5 stars