Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Heavy and rusty

I bought this set seeing an overall good user review. The cons I can see are:* Seems a bit heavy to me.* The knives also don't seem that much sharp. The serrated blades are not helpful for me. I find the the Santoku knife helpful though for regular use.* After getting them out of dishwasher, I could see yellow stains, though it says dishwasher safe.