I have a flat top stove. I like it, but found out I can't use cast iron on it as it holds the heat and could cause the top to crack. Also I won't can on it, I had one good pot and heated water in it one day. Turned out the bottom of the pot was slightly uneven and that thing rattled horribly. After that I found out never, ever to set a hot lid onto a glass top or it can cause it to crack!
My next stove won't be a flat top.
Kat