I have my Mothers 306W, when I think about the decades of hard constant use by her. I use it ....not quite as hard as Mom. I think if this machine could talk it would say "do you think maybe now I could take a break?". When I think about machines we have in our homes in general ( refrigerators , furnaces, etc.) .... this machine worked harder and has outlasted every other machine/appliance by sometimes as much as four or five times maybe more.