The Calphalon Tri-Ply stuff is pretty nice. I was lured in by the number of inexpensive open stock options on Amazon, etc. I have been happy with all of them in their performance and durability, but I must say the lids leave a little to be desired. The metal rims on the inside are very malleable so much that you can somewhat easily bend them with your hands. Both lids I received were slightly damaged, but not so much that I'd send them back. Still this line offers the best value I've seen. I happily use them everyday and hope to extend my set since I can't justify All-Clad.