INSTALLED ONE WEEK AGO, AND VERY HAPPY WITH THE NEW COOKTOP.  EASY TO INSTALL AND FIT EXACTLY INTO THE PREVIOUS CUTOUT.  SLEEK DESIGN AND EASY TO CLEAN.  WORKS WELL WITH CIRCULON SYMMETRY COOKWARE.  ONLY SLIGHT DISAPPOINTMENT IS THAT THE TIMER IS ONLY A CLOCK TIMER, IT DOES NOT CONTROL ON/OFF OF ANY BURNERS (I SHOULD HAVE READ THE SPECIFICATIONS MORE CAREFULLY)