Does anyone have any experience with this model? I am having lots of problems with the plastic tumblers(?) that are mounted on the inside of the drum, they keep breaking off. We have had the unit for less than six months and about a month ago they started breaking off, the repair man is about to make his third trip back to replace them. They have plastic flanges that fit snugly into fairly sharp metal slots in the drum. My simple logic tells me that when 10 pounds of wet clothes are slammed against thin plastic mounted to sharp steel, something (plastic) is going to give. I hate to be stuck with something that was expensive as this was and have it down for maintainence constantly.