I went strictly by manufacturer's instructions, never used more than mid heat setting. Pan was great, then after a few months of use, food started sticking. There is a slight discoloration where sticking occurs. Ads show hitting pan with a blow torch, and I never used more than mid setting on a stove, no spray oil, etc. Looks like technology has not yet reached the point where it can be used long term under normal conditions. Back to the R&D lab guys.
Bottom Line: No, I would not recommend this to a friend
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