I bought the Jeep from CarMax, which I highly recomend, When I first bought the Jeep, it was making a funny noise like an auto-tensioner was bad, well anyways I took it back to car max, and they found the auto-tensioner was indeed bad, and the water pump was also on its way out. I have driven it from Texas to Georgia, and I have put 2400 miles on it in less than a month and have had no problems with it, it rides great. I guess it all comes down to the dealer. I will never go to a traditional car dealer again, I highly recommend Car Max.
I read all these bad reviews about My Jeep, and honestly I am scared now. But I take care of my vehicles, because a couple of dollars extra for the premium gas, and Fully Synthetic Oil, and Good Brake Pads and Rotors. if put garbage in your vehicle then you can expect garbage out of it... I love my Jeep and I only run premium gas, and put a quart of slick 50, with 20w 50 fully synthetic motor oil, and I never had problems, same with my other vehicles.
Bottom Line, you take care of you car, and your car will take care of you...