I cleaned my dishwasher filter and it feels good man.
I bought some cleaning chemicals that you run through a cycle and am giving it a shot. I recently ran a cycle with a cup of vinegar in the machine which was primarily to help remove hard water deposits from my canning jars, but it also seemed to have done some cleaning. The product I am trying is mainly out of curiosity, I don't think it will make that big of a difference. But then I'll know!