we replaced an older cooktop of another brand.  the samsung has some serious iron for the cooking grids.  the grill and contraols are black; the cooking grids are dark gray.  we noticed immediate improvement in gas/flame output.  having the big burner in the middle increases safety. same for the knobs all in a row in front rather than as a pack in the middle.  the grill surface does sit a little higher than the previous model buy our tallest pots still stay below the exhaust fan in the overhead microwave.  the knob lights indicate that a burner is on from just a glance at the unit (more safety).  overall, it works well and meets our desires.  i could care less about the wi-fi.