Not heavy duty. Frail grates. One of the grates arrived broken. Since this cooktop is a replacement, it's the only one we could find to fit the cut in the granite .
We purchased this cooktop and we are not disappointed. It looks great and cooks great.The burners adjust continually from very high to very low, unlike my last cooktop that would not adjust to a true simmer low. I've cooked on this cooktop daily for about 6 weeks, and splattered grease all over it many times, still looks brand new.
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