I have to rate the oven a 3 for one big reason:  Certain cooking types, such as broil, have fixed, unchangeable temperatures and times.  Every cooking type should be completely variable on time and temperature.  The fixed time or temperature forces a person to have to watch the item being cooked to stop or change the cooking instead of being able to start the cycle and then go do other meal preparation.  If I have known this oven had these preset modes, I would have done more searching before buying a convection oven.