Bests & Worsts Reviews from Amazon

Good: Does the job, better than some other "automatic" cleaners I've tried. Usage is about as simple as you can get: drop a tablet in the tank, walk away, drop in another when the first is used up. Bad: A couple of months after I started using this, I read a post (on reddit, I think) by someone whose tank bolts and seals had been corroded into uselessness by this product. I immediately checked the tanks in my two eight-year-old toilets and sure enough, the heads of the bolts holding the tank in place all showed substantial greenish-gray corrosion that hadn't been there two months ago. I immediately stopped using this, flushed several times to get fresh water in the tanks, and ordered different cleaning kits that direct the treated water straight into the bowl. Now I know why (1) the Clorox instructions state "use in toilets that are flushed daily" (the one of my two that showed the most corrosion is flushed several times daily) and (2) other automatic bowl cleaners of this type have plastic containers and water lines to keep the treatment tablets isolated from the tank water. Ugly: A couple of weeks after discontinuing use, the float / valve set on one toilet developed a leak that made the water run constantly, requiring replacement. Might be coincidence; the other toilet is OK. Bottom line: I really wish I could use this product; it did do an excellent job of keeping the bowls clean. However, the likelihood of having to overhaul these toilets every few years (with the concomitant possibility of a wet disaster if the wrong seal fails) isn't worth it. One star, plus one because the stuff really does work. Clorox would do well to revamp this into a direct-to-bowl kit like the Kaboom cleaners I'm now using.