I treated myself to the Valencia Pro 11 pc set in the spring of 2018.  I am the designated cook for family gatherings as well as routine daily meals.  I have used a variety of cookware lines, and none of them have held up as nicely as these.  I have followed the instructions and don’t use metal utensils, and use the protectors for storage.  Pure olive oil is recommended, but I have used regular olive oil and butter in my cooking without any issues. They heat up quickly, and I do not cook over the 6 setting and most often use a 4 and lower.  The variety of sizes in this set serve me well.  And the glass lids allow you to see what’s happening in that pan!   I wish the 5 quart stockpot were a bit larger, and a lid for the 12 inch skilled would be a nice addition.  The handles on the lids and the handles on the stock pot do get very hot.  Pot holders necessary to prevent burns.  I have cooked with propane and with natural gas and would recommend this product.