This is a large piece. We replaced our toaster oven, which was much smaller. This oven has significantly more functions and we haven’t used them all yet, but so far we’ve been happy with it. It appears to be toasting and heating accurately. The preheat function takes a while to get used to and I haven’t decided if i really like it. The preheat comes on automatically for most functions and you must hit “start” after preheat runs to begin the actual cooking cycle. It does worry me that the controls feel rather flimsy, but time will tell.