Product review (4 stars): Easy replacement
I have an old GE freezer-over-refrigerator.  The original ice maker, model WR30X0327, started overflowing.  After a lot of research, I ordered this.  It installed easily in minutes and is now busily cranking out ice.  The supplied cord to adapt the unit's built-in power cord to the old receptacle in the freezer compartment has to hang down below the ice maker unit, so is a bit unsightly, but it works.  I'm not absolutely sure, but it appears that the new unit no longer has an adjustment for the level of fill.  Where the adjustment screw clearly was meant to be is now covered with a plastic tab (that does not remove and has no means to rotate it).  Perhaps there is now a level sensor in the tray rather than a timer on the valve?  In any case, it seems to be producing "cubes" of appropriate size, so I'll leave well enough alone.  Contrary to one review, my original ice bucket fits under the unit just fine.  I had some concern that the water would splash out as it left the filler tube (the splash guard/funnel seems to offer little protection toward the rear), but so far I've not had a problem with that.  There may be cheaper options out there, but I don't regret going with this unit.