My sweet 32 year old bowl-lift mixer is still going strong, This is a 5/5. But the replacement beaters I bought because the original white powder coating was wearing off is a nightmare! I soaked them in vinegar, cleaned with baking soda, and was happy ... for about an hour. Into the dishwasher and back came the black powder. These beaters are mis-represented by calling them stainless steel. They are more like coal. So unhapy and am using my ragged initial beater because I am nervous about buying more. This sentiment is clearly mirrored by other commenters as it is a significant problem.