The burner flames may be set a little high as it's hard to get any of them down to a simmer.  It will take a professional to do that.  The grates are very sturdy (heavy) and you need to be extra careful when cleaning and placing that they don't scratch the stainless steel.  Wish they were hinged at the back.  Overall, the unit is good, but I need to get used to the high flames.  This unit replaces a 20-year-old gas cooktop.