A true convection oven usually reduces your cooking time and temperature by about 30 percent. Not sure if those same principles apply to a toaster convection oven though. In my full size oven I have a fan as well. DH uses it more than I do. Does help when I'm making multiples of something alot. Will sometimes use it to speed things up a bit but it really doesn't seem to me to cut down on the cooking time by that much.