Just got back from a week staying in the dunes north of Corolla, NC.
The Jeep was FANTASTIC both on the road and off.
We drove overnight both ways so our 16 month old could sleep. We were a bit slower on the way down than on the way up because I was trying to get there after dawn so we wouldn't have to run up the dunes and find the house in the dark (especially if we got stuck - the 4wd servo error thread had us nervous). That effort was largely for naught as we still arrived 2 hours before dawn and I wasn't about to wait for the sunrise that long.
Still we drove so sedately we saw our best mileage yet - averaged 26 mpg on the way down (mostly down Route 1 and 13 through DelMarVa to the Bay Bridge/Tunnel) so speeds were generally just 50-60 mph.
Came home a little quicker last night so mileage dropped to 25 mpg. I'm pretty impressed.
We even managed 20 mpg running around the beaches/dunes and local roads with the tires aired down.
Speaking of beaches and dunes, as I reported in the 4wd Servo Error thread we had ZERO problems and didn't get stuck once. If the radio was actually off I could hear the brake system working for traction every now and again (mostly crossing the DEEP sand on the dunes) but she never missed a beat.
As a matter of fact we got a knock on the door one evening as a Wrangler Unlimited was high-centered on a dune just up the road from our place, just one water crossing away.
I threw the recovery hook in the tow hitch and ran a tow strap around his front hooks. Set her in 4wd LO and Sand Mode, then pulled it off the dune like it was made of paper.
We couldn't be happier with our WK2.