I like everything about the cooktop except the digital buttons are so hard to figure out.  Much prefer a regular knob control.  The lock and unlock feature is tricky.  Also, makes cleaning hard if you don't have it locked, when cleaning you are turning the burners on.  The beeping sounds terrorize our dog.  For some reason the frequency of the beeps hits a level (unlike any other appliance in the kitchen) that sets her off and she goes running.  I searched for a "silence beep" feature, but it does not have one.