I had the pleasure of a early 08 job 1 truck.
so...went through 3 radiatiors, dpf cracked (2k repair btw), stearing box replaced, few programing changes. the truck was stock.
loved the truck and interior (my second super duty)...but had a few issues..
the biggest for me was it broke down on a vacation that cost me a few days of vacation time. and the biggest was it started to make a little oil. ford said it was in spec, but my fuel mileage (which sucked btw) went from 11-13 down to 10.5 with the wife driving (all highway) took it back to ford, which is a 150 mile round trip for me and they would not even look at it. this is a dealer that i bought 3 trucks and 2 cars from. and i was a "premere" customer and knew the service writer. and ford told me to pound sand.
so when dodge went to the new body style with a true CC and had 1.9 finacing I switched. I'm now at 15-16.5 mpg on the hwy (cc 4x4 3500) with 15k miles on it and zero trips to the dealer. plus since this eng/trans combo has been in place since 08 all the bugs have been worked out with turbo/programing change.
I will never again buy the first year model diesel engine no matter what the mfg hype is. I bought into fords testing of the 08 before i bought it.