Product review (5 stars): Important installation instruction.
The installation is very easy.  If you are replacing an existing unit, just two screws to remove the old unit out and install the new one in.  Watch the connector, it plugs just one way in, there is some kind of notch or guide.

But instructions with the unit are very poor.  It doesn't mention that one of the cables to plug have some kind of temperature sensor that needs to fit into a clip on the underside  of the unit.

Without that part fitted there, the unit may not work.  !!!!!!!!!!

And again the instructions didn't cover that.

On the other hand, one good thing, you can adjust the amount of water that goes in to make the ice cubes.

It came with all the parts needed, including a mounting plate that helps fit the unit to older refrigerators where the mounting screws maybe at a different location.