Product review (5 stars): Exceeded My Expectations
Installed pretty easily and I had no serious problems (at age 73+). This cooktop replaced a cooktop gas burner almost the same size - the old one was rusted out.  I had to square off the opening in the countertop for it.  For this new one, had to string an electrical wire and install a 110v ac outlet for the electrical ignitor, which is not absolutely neccesary.  That is, any flame can be used to ignite the flame.  Thus, it is usable in a power outage by using matches or the like to start the flame(s).  BUT on the other hand, there is a danger that the gas can flow without fire so there would be an explosion risk.

So I strongly recommend caution when turning on the gas by the knobs. The igniters work by depressing the knobs.  I painted black stripes on each control knob to make it easier to see the knob positions.

My wife likes this cooktop as much as me.  It is handsome/beautiful (male/female pespective) and made to contain cooking overflows after proper installation.  The grates simply lift off and cleaning is very easy.  Flame control is accurate.  Has two same-size burners at the back, a big one front left, and one litte one right front.