Surprisingly well. The Icon 3/1 setup rides great at speed. Aired down to 18/20 or so. Only got stuck once, up on the top lip of a dune. Buried it to the frame, buddy pulled me back down. Its heavier than my 4Runner, so there were some hills it really side-slipped on.
Several trips with the rig since the last update. Just back from a run through Mojave.
I found a great deal on a truckvault recently after looking for a year or so. That thing swallowed up almost everything. I built a small box to go in front of it for hi-lift, shovel, etc.