I installed the cook top myself.  It simply dropped in to the existing cut-out.  The only connections were screwing in the gas line and plugging it into an outlet.

It worked immediately..  The only follow-up was applying clear silicone sealant around the edges.

Total time was less than 8 hours.

In terms of operation, it is super.  The burners have a wide range of adjustment to suit pot size and cooking needs.