We bought a NE63T8751SS cooktop in September 2022. Everything was fine for a year, but almost exactly after a year we noticed that the oven stopped reaching required temperature. We would set the temperature to 200C and the oven would beep and stop heating at 185. We'd need to adjust the dial again to 200 ( the dial was somehow at 185 even though originally we would set it to 200 ) and then the oven would warm up correctly. Samsung sent us a technician from a service center that operates in our area, and the tech said that the oven operates normally, even though we showed him the behavior. He said that all convection ovens display 15 degrees less, because of the fan that spins. How can that be, if we use convection ovens most of our lives and if we set 200 degrees, it should correctly go to 200 ... We called to complain again and Samsung sent a technician again, the same guy, who replaced something in the oven. Both times the technician was rude and did not listen to our explanations. When we called Samsung again and went through levels and levels of support, and we tried to send a video of the behavior, they said its on us now and if we find a technician that confirms that the oven is defective, Samsung may do something about it. We're stuck with the same service center that does not offer good service and with an oven that's very obviously not behaving well. The customer service we received was fine, but Samsung as a company with their policies is below average.