There are a bunch of guys on the Jeep forum I view from time to time that have close to 60k miles on them, with no issues. I haven't had the first issue yet...Knock on wood.
by the seat of my pants compared to the 3.6..I can vouch for it being real.
I can back this. Had one for a week, the 2.0TT is worlds better than the NA 6.