Hi! I recently got a Frigidaire convection oven. It has a function called "convection convert". What you do is key in the temp. you would use in a regular oven and the temp. is converted to what you need to use for the convection oven. Basically, it seems to reduce the temperature by 25ºF.
Also, it has convection bake and convection roast features. I cooked a beef roast using the conv. roast feature. I don't know I could be wrong, but it seemed to take the same time as cooking a roast in a standard oven.
I have used the conv. bake for brownies and pound cake. This worked well. They cooked in less time than usual. The oven manual does not reccommend using the conv. setting for some baked goods.
Also, I find the conv. oven works well for frozen foods. Things seem to cook faster and more evenly. In direct contrast to DeborahA, I find the bottom and top of things done more at the same time. The top does not get overdone while waiting for the bottom to cook as it did in my old oven. Most convenience frozen foods now have convection oven cooking directions on them.
Today I am going to try a rhubarb pie. In my old oven I would bake a pie for 1 1/2 hours at 425º before the filling would be bubbly and done and the crust/topping even though covered with foil would be over done. I am hoping for the best.
Good luck with your oven. I really like mine.
Lisa