I had a Rubicon - and I now drive a Pajero. I am also a member of our local Jeep Club and have been for 9 years so feel qualified to answer.
Positives:
- The JK Wrangler, and especially the Rubicon, is an awesome weapon off road. With the sway bar disconnected, and twin lockers, there are not too many places that will see you having to have a second go at it, or even worse, get pulled out. However, it is so capable off road, that it can be a bit boring as you don't have to think about your line as it just crawls over everything.
- The do look good - and when modified with lifts, bigger aggressive wheels, bars etc, you certainly get the looks from kids in other cars pointing at you wishing they were riding in your rig!
- They are unique - every JK is different in the way that the owner sets them up, and you can personalise it to whatever you want.
Negatives:
- The most unreliable piece of s**t on the planet! Every time we left for a trip we wondered if we would be coming back home in the JK or in a hire car. Ours let us down on many occasions and ended up on the back of a flat bed, once on Easter Thursday as we were on our way for an Easter trip, and another on New Years Eve. (Please note that there have been some JK owners that have had an absolutely trouble free run - but they are not in the majority).
- Towing wise - they are an absolute dog. Now this may have improved with the new Pentastar engine, but if it doesn't have that - expect to be going 60km/h as your top speed going up hills in a 100km zone.
- The towball down weight is pathetic! The towing capacity may be 2000kg but the downball weight of ours was only 170kg.
- Comfort: Offroad you don't really care, but getting to that offroad destination is nothing like the Pajero we replaced it with
- Dealership network: In outback areas people don't want to now you if you have a problem if you have a Jeep. Say you have a Toyota, Nissan, or Mits and it is a different story. Jeeps are like the anti-christ out there.
- The mechanics: Unless the mechanic can plug in their computer to find out what the problem is, then they have no idea and will take ages to actually diagnose and fix the problem.
Do I like them - I do - but now only from a distance!