Commander in the sand is the BOMB... I took mine down to the Outer Banks this past spring, and went out to Ocracoke... It never faltered. However, it did seem to grab better when I had it in 4WD Low... I only took the tires down to 25 PSI, so if I went lower I might not have needed 4WD Low... I've driven Wranglers, Grand Cherokees, and Durangos on the sand down there, and the Commander was a close second to the Wrangler (hey, open air on the sand can't be beat by ANYTHING).
2014 Jeep Cherokee TH - Anvil, V6, Leather, Tow, Convenience, decal, sunroof, NAV