I should point out that while of a different opinion, Ricardo's summary of the AHC system is also spot on. But hey, you asked and that's why we're here, to share opinions.
My intent with a 100 is load it up with camping stuff, pull small trailers, run multiple refrigerators, and twist a knob & aim directly at large pointy objects. The fact that my total investment is still less than my original purchase price of the 80 is somewhat comical, and well I guess I drive it as such.
Heck, I even let Hulk drive it..
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 01 XT225, 09 TTR125, 07 TTR90, 07 CRF50