IT REALLY WORKS!!!
I just got my bottle. I put the salt & water in, plugged it in and waited the 6 minutes as directed. Then I sprayed my shower stall, including the shower head that had hard water stains, and it was clean like magic. I wish I had video recorded it because I almost can't believe it and I did it. I don't usually write reviews like this, but I can't believe it works so well, so fast. I'm just mad that I never knew about this product until now.
Rating: 5 stars