The design,mfg. and usage are excellent but the choice of material is not. Since when is it OK to use recycled stainless steel in food products, this means the stainless steel they used contained scrap iron,steel, aluminum, motor oil,etc. This is indicated by rusty spot and staining on the blades. Why does made in USA have to follow USDA,NSF guide lines for our health but made in China does not, once again high profit margins are more important than our health.