I just purchased this Dual Fuel Flex Duo Stove and it seemed like splitting the oven was a good feature.  Unfortunately, the very first time we used the upper oven to cook a casserole, sauce dripped down in between the glass of the lower oven door.  Now it looks awful.  Samsung Customer support was no help and said if I opened it up, it would invalidate the warranty!  I paid almost $3500 for this stove and I can't believe the design is that poor that there is no way to clean this thing without invalidating the warranty.  I even bought an extended warranty from Home Depot!  Does anyone have a solution or should I just return it to Home Depot?  It matches my refrigerator and microwave so I really wanted to like it.  Their literature says cleaning the oven door is not covered by warranty.  Terrible!!!