Have been using the "CopperBottom" pans for as long as I have been cooking (45 + years.) never did like how the bottoms warped on them, really noticeable after we got a flat top electric range. Annoying to say the least. started with a 2 QT. sauce pan, steller performance from that had me looking at the 3 QT. sauce pan. the bottom stay nice and flat, everything cooks evenly and at lower temps. they do a great job and look really good doing it. if you don't have a 3 Qt. All-Clad sause pan think of some excuse to justify getting one. Soon, you will NOT regret your accuasion.