I have had the Jeep for a couple thousand miles and love it. It has never had any major problem. The headers were cracked, but what 4.0L's are not; I replaced them with a Banks set for about $300 and put them in myself. Very simple and easy to work on if you decide to take the time. A clean Wrangler will never go out of style and they hold their value pretty well. I go off-roading and have never had a problem. (4-in lift with 33in BFG All-Terrains on black rims). Also the ride stinks really bad. You can feel every bump in the road, but it's a Jeep and i would not have it any other way. :)
The 4.0L, 5 speed, very simple, fun to drive, and all the looks I get when driving down the road.
My gas mileage really stinks at about 12-13 mpg city, but the headers and performance exhaust help. Rides so rough but that's not what is important.