I purchased my Rocky Mountain Edition as a dealer demo. Fully loaded with all options except the navigation system. It is a Jeep - meaning that it has its quirks and faults. That being said; I wouldn't own anything else. I use this vehicle for my job which is building cell towers in extremely remote and rural areas such as mountain top sites. This Grand Cherokee has never left me stranded and no major problems. But keep in mind that a Jeep does need constant maintenance and care. It is not a Honda or a Toyota that you can abuse and not have any consequences. Flush the tranny every 30k, flush the cooling system every 30k, change out the differential and transfer case fluids every 40k.
I was a foreign car technician for almost 20yrs, and have found this vehicle to be very well built. I purchased it as a Certified Used with 18K and now have only 135K on the Odometer. The vehicle has received more than the required maintenance, by cutting required fluid changes in half. I do mostly Hwy driving, and get 60K out of average M&S tires. Have only had to replace the Crank Position Sensor @ 110K, and all coolant hoses @120K service, other than normal wear items. This Vehicle has a timeless exterior, functional clean and comfortable interior. The ride is harsher than others in its class do to the solid axles F&R ( one of the main reasons I purchased it). The other being the Dinasaur inline 6 cyldr all cast iron, pushrod engine. This easy to work on , smooth running engine defies "Murphys Law" - If its hard to get to - it will break! I would recommend using high quality motor oil or adding a Zinc additive to it , do to the flat tappet design of the lifters in the engine, and the reduction of Zinc in modern oils due to environmental concerns. Fuel economy is the only negative , I average 17 mpg @ 75% highway.
I have owned my 2004 since 2006. Bought with 85k miles and now have over 172k miles. Only minor repairs during life of vehicle so far. Very comfortable, performance lacking big time but isn't a V8, MPG awful! Probably get 12-14 MPG on average. Most get is 18MPG hwy but with very conservative driving. Only major repairs is a transmission solenoid about 450 at 160k miles, fuel pump at 90k miles (ran the gas too low for a long period of time my own fault). Other than that change all fluids when your supposed to and has been a good reliable vehicle for me.
I purchased my Grand Cherokee Laredo from a local used car place with 145,681 miles on it. The vehicle now has 210,450 miles on it. I still average near 21 mpg's on the highway with it. The inline 6 is a very durable motor, the only items I've replaced on it was at 175,265 a water pump, tires normal wear, brakes, and all push rods for lift gate, hood, and back glass. The cooling fan went out a few miles back going to replace it soon. Great vehicle. I get 17.5 mpg's in the city.
Overall: If I've been good to my GC so it's lasted me a long time; going on year four. Only reason I wouldn't drive a GC is if I decided to downsize or upgrade to a different vehicle type. Good things: The engine is very strong ? everything else on it will fall apart before its 4.0L straight-six does. I change the oil myself, moper filter only, every 3,500 miles. I have never had to fix anything on the interior (e.g. seats, dash buttons). Aftermarket parts are cheap for the value, so fixing things never costs and arm and a leg. For the whole time I've owned it, it's only needed to "major" jobs completed. The 4x4 is one of the most reliable systems I've owned. Only had two recalls served, and both affected at least a half million other vehicles across makes and models (not just a Jeep problem). The service depts. I've been to are helpful; I'm very blunt with the associates, which makes them honest with me. Bad things: I watch my gas level drain when I drive it ? hurts the wallet when I'm traveling far. I swapped out the trans at 195k miles (most truck trans last longer, so get a truck if you want trans and engine reliability). Chrysler went cheap on the electrical harnesses in the doors and the wires in the door jams, so the windows and doors may stop working. The OEM headlights point low to the ground, so night visibility is very limited. And the headlamp assemblies fog over, so get aftermarket ones. The body rusts too easily (mine has the notorious rust spot above the back passenger wheel well) and that shouldn't happen to almost every GC, but it does.