I had a prior model for 11 years of daily use before replacing with this one. While I like the look of this, the efficiency is flawed. The back fan vents blow exhaust air from the fan onto the burners so you can’t cook on the range while running the oven without using something (I prop a cutting board) against the back to block the fan from hitting the burner flames. Otherwise the burners will not gain heat enough to boil water. I am also not happy with the cooling fan noise. It’s louder than can make it ignored, and it runs several mins after the oven is turned off. What a shame to be a longtime customer and so displeased with this current upgraded model that was more costly than other models available. The extra expense actually delivered inferior product