Product review (4 stars): Plugged in with a little work.
Remember that the unit does not come with the "I'm full" lever or a water receiver that will most likely fit your existing fridge.  Keep your old part so that you can add these items to the new ice maker!  It is an exact replacement otherwise.
The unit does not come with instructions however, it is not difficult for a reasonably ambidextrous, ten fingered body to disassemble the unit, add in the old parts and reassemble.  Just be careful to study the unit before you take it apart to make sure you know how it is supposed to look when finished.