We haven't verified if it is operating correctly or not but it is extremely slow to eat up. It takes close to 10 minutes for it to heat 100 degrees. I also don't like the feature that turns the oven off when the timer gets off. This forces you to have to turn the oven back on and set the temperature each time your timer goes off. I find it to be extremely inconvenient.
I purchased this range last month and I can't believe what a difference! My food cooks more evenly and quickly than my old range. The self cleaning oven is the absolute in saving me time and energy to keep clean. I would definitely recommend this range to anyone who is looking for a new one, I even told my oldest daughter she needed to get this range as they are looking for a new one!