Initially we thought the oven had legs that can be adjusted but thankfully we fired it without any issues. Then we thought the ovens are the same size , usually the main oven would be larger. However we are more than happy now we’ve used it for a few weeks. Both ovens are easily used as ovens, as apposed to an oven and a grill. The cook is fantastic so far.. no heat spots as yet . I bake a lot and all cakes & pastries have been great. Sunday roasts have been made easily using the main oven and the fan works well. The dials are fairly easy to see and the markings on them insure you know where it’s set. All in all we are very pleased with this oven.