The guaranteed fit and the stylish look sold me on this unit since we were replacing countertops, but not the cabinetry.  The GE that was in this house had all the writing scrubbed off by the prior owner - so while still functioning the stainless was in terrible shape.  So, I replaced with this black unit.  Its a beauty.  Until, tonight, less than a month into use and I have a melted knob.  It's a cooktop.  It gets hot.  Seriously GE?