Product review (5 stars): Two Minute Install
I had trouble unplugging the old unit and had to use heat gun to unfreeze.  Directions did not look like my unit.  I did not change any included water parts.  The instructions said I must do that but since the old and new units had exactly the same water caoacity I didn't do it.

Installation required I remove old unit, one screw and one plug.  Remove two plastic parts from old unit and snap onto new unit.  Slip in, install screw and plug.  Turn on.

If I did it again I could easily complete job in two minutes.

Working great!