Features are important depending on your needs. Try to determine your needs based on your current usage is with a microwave oven. At Applianceland we do not over sell features with our customers. One feature people like on OTR's is the addition of a convection oven. This will give you the convenience of a microwave and an added oven.
Microwaves come in a variety of colors.
These colors are white, black and almond. Not all manufacturers have almond. A designer has more flexibility with cabinet sizes then the appliance manufacturers. Bring your appliance model numbers and spec sheets to your designers. ApplianceLand has determined that it is very hard to find a designer who has full knowledge of appliances and all that the industry has to offer.