The Insinkerator is one of the best disposals I've had over a 30 year period. The on/off switch engages when you put the cover cap in place and turn the cap. This ensures perfect hand safety. The disposal also has the horsepower to take care of daily food waste. The only reason I rated it good rather than excellent is that for the first three months it ran whisper quiet, but after three months began to run with quite a bit of noise and vibration.