Product review (3 stars): Good for the short run, not built for the long run
We bought this cooktop in Oct 2014, and it worked fine for about 10 months before the knobs started falling apart.  One by one all knobs started breaking, and finally about 2 years after we installed the unit, it blew and just died.
It did work well, but for too short a period.  I'm very disappointed with the durability of the knobs...they should not be this flimsy.  And as for the inner mechanism, it should not stop working after just 2 years.