Product review (2 stars): I'm Sad.
I had been using the same bottle of Whirlpool Cooktop Protectant for years, and I absolutely loved the stuff.  A few drops on my ceramic cooktop, every evening after I had finished cooking, kept my ceramic stove top looking show room new. Never a spot, a smudge or a mark....Then, sadly, my bottle finally gave me it's last few drops, and I was forces to go looking for more, hoping, against all odds, that I would be able to find the stuff, after all these years.  What I found was this garbage.  They changed the packaging, but kept the name, and they should not have.  apparently the formula, that used to work wonderfully, has been changed. Instead of being a thick paste like polish, this stuff is watery and leaves a horrible smeary haze behind that no amount of buffing and polishing can get rid of.
My mission, now, is to search country stores and outlets, and try to find a bottle of the origional formula Whirlpool Cooktop Protectant...because, in this case, New certainly does not mean improved.