Product review (2 stars): The oven bakes impossibly uneven.  And Samsung considers this to be normal for this product!
I gave 2 stars because the cooktop is amazingly good.  I bought and had this oven installed in November of 2017.  The stainless steel on the cooktop is easy to scratch and shows every crumb, but that is a minor problem.
The real problem is the oven.  This range has the most uneven heating I have ever experienced in any of the ranges I have had over many years.  I have had Samsung repair out twice now - first time the thermostat was burned out so they replaced that.  No improvement in the oven.  Using a good quality oven thermometer, I found out just how uneven the heat is.  When I set the top oven on convection at 450 degrees, instead of heating to 425 - which is normal for convection - it went to 460 and burned the food.  When I turn on the bottom oven, to convection heat of 450, it chimed when it said it had reached 450.  But the thermometer registered 300 degrees!  It actually took 25 minutes to get the oven to 400 and it never went higher.  I learned from one of the repair men that both ovens actually chime when the HEATING ELEMENT reaches the set temperature, Not the oven cavity!  WHAT???????  That is insane.
After the repair man saw all this he called the repair center and was informed that a it is acceptable in this oven for the temperature range to be off by anywhere from 25-40 degrees!!!  And Samsung had no intention of doing anything about it.
I called the Escalated Customer Support and a third repairman is being sent out.  I am SOOOOO sorry I ever bought this range and I can't imagine ever buying from foreign-made Samsung again.  If this won't be fixed by Samsung, I plan to try to get Lowes to back me up.  They have excellent customer service and I am hoping they will work with me on this.
The takeaway form this story is: NEVER, EVER BY A SAMSUNG KITCHEN APPLIANCE!!  THE QUALITY IS UNBELIEVABLY BAD and YOU WILL GET VERY LITTLE HELP FROM SAMSUNG!!