We have had the GE Profile glass/ceramic cooktop for three years and still can't figure the d**n thing out. It's slow to heat up, we don't have any idea where the heat level is, (I've burned up a couple dishes lately running on 1 - out of 10 - when "medium" heat was called for) and it just won't cool down when a reduction in heat is needed. We have come to realize that to reduce the heat on a dish we just have to start up another burner at very low temp and move the pan. We have mostly All-Clad cookware, so I don't think pans is our problem.
I'm starting to look seriously for an induction cooktop, but may be out of luck as they all seem to be just slightly larger than the GE, and I don't think I want to see about enlarging the cutout in our granite counter! :cry:
Looks really cool, though- black glass on a black granite counter.
As an added inducement, it's a b***h to keep clean, which you MUST do unless you want to vulcanize any spills to the surface when you next heat it up.
Scratches real easy, too. :eek: