In remodeling a home we purchased, the Wall Oven/Microwave Combo was 27" and had old style knobs. It was a pain to use. In reviewing various Oven/Microwave combo's, we decided that the Frigidaire Unit would best fit our needs. The ease of control with the touch screen, the size of the unit, the quick heat up function and the cost led us to purchase the unit. Install was ease and quick