Two screws held the icemaker on. You do not even have to take them all the way out to remove the IM. Replacement of the water valve was just as easy except they (parts manufacturer) updated the flange nut with a compression fitting and it took me a minute looking at it before I realize what was going on. The door seal could not be easier, no tools just a few minutes of time

Removed the plate on the back of the refrigerator, removed the bolt holding the water valve in place (didn't know you could cut the water line to get it off), Plugged in the new water valve and water lines, 15 minutes, very easy to do.
Removing the ice maker was easy, 2 bolts and a plug. Loosen 2 bolts, lift the ice maker off, unplug it. Put the water chute and ice guard on the new one, put it back on the bolts, spend 1/2 hr getting the plug back in (couldn't see past my own hand), Tighten the bolts and you're done.
Really not difficult, except that the plug was angled, and I had to go by feel.

I unplugged the electrical connection. Then I removed the 2 screws holding the icemaker in place. I lifted out the old icemaker unit and put the new one in place. Then put the 2 screws back in and plugged in the new unit.

The icemaker started making ice very soon after turning the unit on.

I first shut off water flow to the fridge. Examination of the package (which was not exact in appearance to the original) demonstrated that the electrical connectors were well-insulated so I arrogantly and successfully proceded without disconnecting the power. My fridge is old enough that the model doesn't appear exactly on anyone's list so I wasn't alarmed that it took an extra 10 minutes or so to noodle out how to adapt the slightly different inlet cowling and electrical cord with extension, but the device is pretty simple.
Soon I loosened the two mounting screws with a nut driver, used a screwdriver to pry away the plastic snap-in housing over the electrical socket on the fridge inner wall and pulled away the electrical plug. The original water fill tube remained in its cavity, ready for re-use.
The new unit's mounting points matched the original screw locations perfectly, as did the fill cowling - which on the replacement icemaker has two possible attachment points. The new unit's electrical connector required an extension pigtail to adapt to my socket, but it was included in the package. The extra cable posed a minor cosmetic issue because it hangs in the collection basket a bit, but that will soon be remedied with a tie wrap.
After the water was restored and an anxious wait of a few hours, we had well-formed ice cubes that weren't all stuck together and the stalactites haven't reappeared.

used a screwdriver to remove screw and unplugged part. Plugged in new one and secured with a screw.
Simple

The replacement ice maker that GE supplies for my old refrigerator is a little different than the original. The electrical plug changed from a round plug to a square one. They include an adapter for it, but DON'T USE IT. There's not enough room for the bulky cord and connector. I got a much cleaner installation by taking apart the old and the new ice maker, and then splicing in the old connector into the new ice maker. You need to carefully unscrew a circuit board inside to wire it in, and it'll be more secure if you solider 3 wires instead of using crimp connectors. The instructions also tell you to use your old 'ice breaker', but it won't fit on the new ice maker. I just left the new ice maker's ice breaker on, and it seems to work perfect.

There were not two screws as the instructions said. There was only one screw and I had to firmly pull it out after taking out the one screw. Then, to put the new one in, I had to line up two slots on two knob-like things and push it in firmly. Then screw the one screw in.

Other than the two-screw problem, it was easy.

the first thing i did was replace the water valve at the bottom of the refrigerator but that didn't work so then i spent more time researching the problem on your site and your diagnostic said to replace the ice maker so i ordered it, took the old one out, plugged the new one in and we had ice the next day.

Frig and freezer were defrosting and refreezing other than normal. Home warranty contractor told me ice maker was faulty. Purchased new ice maker. Unplugged frig, loosened 2 screws with nut driver. unplugged old ice maker, lifted old ice maker out. Took old fill cup off old unit and put on new unit since new fill cup was a different size. Swapped ice maker insert from old to new unit. Plugged in new ice maker, slid over the 2 screws, tightened, and plugged in frig power. New ice maker works fine but still have defrosting and refreezing problem. Figure old ice maker probably works just fine. New contractor still trying to solve problem. Have had problems with this GE Monagram keeping proper temps since it was new in 2005, don't recommend it.

Shut off power to the refrige. Removed old icemaker, using large hammer. Installed new unit.