It provides much smoother shifting and eliminates the quirky and clunky stock shifter setup. Makes shifting it feel more natural and precise. Jeep switched to a cable shifter in the JKs for that reason. This retrofits a cable shifter in place of that odd contraption under the floor to shift the transfer case. It’s actually a pretty impressive difference.
It also doesn’t need to be adjusted every time you modify driveline angles or heights relative to the tub. So if you ever install a different skid plate, a body lift, motor mount lift, etc. it doesn’t need to be adjusted. This only needs to be adjusted to work once.
It is something you could do with a bit of mechanical skill. It’s pretty much all nuts and bolts.
You’ll want to drop the skid plate and the front driveshaft to gain good access to the area, but that is the hardest part of the install. The rest is simple assembly.