We had a Frigidaire Gallery electic radiant cooktop for the past 20 years. We never had a problem with it, and everything about it continued to work fine, but we wanted to upgrade to a knob free unit. Induction seemed to be the next logical step. It was purchased a month ago, and has been great. The 20 year old unit came out, and the new unit dropped right into place. No cut out modifications were required. The installation was a snap.