Instruct: Classify a given Amazon review as either positive or negative.
Query: not as good as they used to be

My original mixer and attachments were from the late 80's and has worked perfectly for years. We bought this kit when the plastic housing on my original set cracked. So instead of searching for a used one on ebay, I decided to just by a brand new one since I use my attachments frequently (about once a week). I am very displeased with the overall quality of this set. The plastic housing is thinner material than my original, so I have no doubt it too will crack. But the worst part is the blades. I use the small shredder and the disc slicer regularly and when I tried these out, they were so dull that they didn't cut my vegetables as much as "chew" them up. I am very disappointed with kitchenaid or whoever bothers to manufacture this product.