We just got it so haven’t cooked much yet but timed 12 minutes to heat from 0 to 350, and 6 minutes to go to 400. Way faster than my old older oven. And no heat escapes when the oven door is shut. My old one leaked so much from underneath that it burned my feet! It looks nice, very easy to use directions on the digital pad, and easy installation. So far, I LOVE it!
We have had six ovens over the past 20 years and this one cooks the best of any of them. The convenience of a "smart" oven is even better than we envisioned. The roller racks have an automatic feature so it doesn't roll out unexpectedly. The oven is very easy to use both manually or via a smart phone or Alexa, but not both at the same time. The temperature accuracy and even heating is outstanding.