This is our first gas cooktop and we have been very pleased.  Quality construction, heavy cooktop grates.  Center burner is great for boiling.  Light up knobs are a nice touch and gas lockout on top is a nice feature.  Just would prefer more than one large burner other than the center.  Not sure how much we will use the small simmer burner.  Would be better if it was integrated with one of the other burners instead of a dedicated one.