THIS UNIT WAS REPLACING A BOSCH THAT THAT WAS NOT STAINLESS STEEL DUE TO A REMODLE JOB.  WE SOLD THE 15 YEAR OLD BOSCH THAT WORKED GREAT.  THIS UNIT IS SO QUIET THEY HAD TO HAVE A RED LED SHINE ON THE FLOOR TO LET YOU KNOW ITS RUNNING.  VERY MODERN WITH THE CONTROLS HIDDEN.