It replaced a white GE oven/microwave from 2004.  The new one fit in the exact space.  It looks great, and the rotary control works great.  Plus, the new one has convection oven, too!

I had a neighbor help me install it.  It was far too heavy for us to lift, so I had to remove the microwave, install the lower oven, then re-install microwave on top.  There were no instructions for this, but it wasn't too hard to figure out.