2 x 56" stainless steel worktops.  I have replaced them three times (total of 6), still defective.

The stainless material and the wood core appear to be good quality, but every worktop I have received has been defective.  Two had dents/rust during manufacturing (not shipping),  four have defective bends under the wood core.  The defective bends mean that the stainless steel sheeting lifts away from the bottom, and creates a bubble in the work surface.  The work surface then flexes when you set things on it, which makes it unstable, frustrating, and somewhat useless for small/fine work.