Some  good performing and seriously good looking cookware.  After using cheap disc laminated cookware for years  and waffeling between the d3 and coppercore, I finally went all out with a full upgrade and have no regrets.  These should last longer than I do.  You can feel the copper in the weight of the pans but they aren't so heavy that they are clumsy.  Very even and responsive heating.  Only downside is I can't blame my cooking mistakes on my cookware anymore.....