I had that exact washer. I bought it new, from the Sears warehouse with a minor dent in the side.
They don't make them like this anymore. This was in 1999. I bought an electric dryer that is several steps down from yours. It had the hamper door and 2 temperatures. The panel had the timer and the push to start button and it was the super capacity, like yours.
They always worked great. The washer had the snap on fabric softener, though I never used it. I kept the washer until 2006 when I converted to FL. I sold the dryer in 2008 and it was still in spotless condition and working great.
A year later I bought basically the same set-up, but with a few more features for my mother as a gift. My mother kept hers until 2 years ago when she bought a cheaper new Whirlpool set that are like the last of the DDs. She wishes she had her KM set back.
I think the best part about the washer is the 3 speed motor.
Good luck with yours.