Been using this cook top since early May. It works like a charm, though some burners make a buzzing, clicking noise, particularly on power boil. The noise dissipates to a mechanical hum if the burner is turn to a lower lever, but doesn't disappear. Not sure if this is supposed to make this noise. 
It is easy to clean, easy to use, and works as well, if not better than a gas cook top. [This review was collected as part of a promotion.]