Product review (5 stars): Easy do-it-yourself project !
I guessed that I had a problem when the dishwasher started washing the floor more than the dishes.  After doing some research, I decided the gasket was the culprit (the dishwasher IS 20 years old,as was its door gasket), so I ordered the part, and crossed my fingers.  When it came, I YouTubed the directions, installed the gasket, and it worked!  Easier than I thought it would be, and it saved me a lot of $$$by doing it myself :)