I had to make the hole in the existing oven cabinet a little bigger, but the oven fit like a glove.  I had to recess the power outlet a little because the oven is deep and the outlet can not be directly behind the oven.  However, moving the outlet was not an option.  A 90 degree plug would be better on this oven.  The installation instructions are for the buzzards.  There are too many products being covered by one document and it made it confusing and more difficult than it had to be.  Love the knob!  Push Cook Time, spin the knob till you get the time you want, then push the knob two more times - bzzap!  It sounds odd but I really like it.  The oven cooks quickly and evenly with the spinning tray thing.  I have only dabbled in all of the features that it has.  Love it so far.