i have a 27" double of wall oven and microwave. it seems bad in a way as if one breaks what do you do? but the control panels are combined so it takes up less space than two separate ovens, and the microwave door opens down which is great for taking out a hot casserole, you can slide it out on the door til you get a good grip with potholders.

Thank you very much for pointing out the potential problem.

Great advise, very helpful.