There is a definite difference in the texture it generates compared to a convection oven. Thats why I thought it was a scam first because the tech is older than old but the way its put together (along with the no preheat) definitely changes the way food comes through.
That and the convenience plus it comes in handy when you're cooking a lot and need a bit more room to prep with. My regular oven gets virtually no use these days so props to the Coli on that one as that big ass thread of people cheffing changed my mind.