First -
AoBFrost - Cars that are taken care of can run indefinitely. That means regular maintainence. The problem is that most owners just drive it and park it.
Now, my sis has the 94 version of this jeep. It seems pretty solid and a good vehicle. But, if this is your first car, I would suggest something that's 2WD, not 4x4, because the insurance will eat you up, or your parents that is. Until you're 25, your insurance will break you. Add 4x4 to that mix and it's, well, let's say that with the money you save, you could probably buy a couple sets of Halo armor.
If you can find something with a straight-6 (or even a slant 6), you'll have a really dependable vehicle. Some say you can put a .44 Magnum round through it and it'll still run. In my old GMC pickup, I was running on 4 of the 6 cylinders and couldn't even tell. Leaked oil like mad... but ran like a tank! Gas mileage was decent for a truck...but it looked like hell!