They are nice looking ovens.  
The Advantium / microwave oven is very good.  Big enough to cook a sizable roast or chicken. I like the availability to microwave, speed cook, convection bake food.  Just remember to have the correct tray in there.
The bottom oven is a different story.  Due to the hidden element below, It takes Forever to preheat.  It is small compared to a conventional double oven, 3 racks are way overkill.  Two racks are a squeeze. 
To be honest, if I had to buy again, I’d go with another choice.  
The bottom oven is a bit of a