We inherited this oven with our new home and I didn't even know ovens like this existed! What an amazing time to be alive! The air fryer(no pre-heat) feature is amazing for so many things. It took me a little while to figure out the App and how to connect to my smart home but now I can use Alexa to preheat my oven without leaving the couch. This has proven more useful and convenient than you would imagine. As everyone knows it does take several minutes to preheat your oven and with kids I've found it useful to be able to start pre-heating from anywhere in the house(or even one time on our way home while still in the car!). The Cafe(Smart HQ) App works anywhere and you can turn the oven off remotely if someone had mistakenly left it on or had to leave abruptly(has not happened but good to know).