I remember that there were a few issues when they first came out.A lot of people were not happy with the amount of power so at some point they added some power..I am one of those who reads Consumer reports and they gave it a average rating for 08-09.06-07 were rated above average for predicted reliability..
We have a handful of customers that service their Tribecas with us. 2008-2013 with mileage ranging 40-130k. One of our customers had to replace a cat after his warranty ended, but other than that we have not seen any thing big. Our customers have been pretty good about maintaining their Tribecas though.