First was an '04 and the second an '07, never an injector issue with either. I did have to have the updated standpipe(?) installed on both, also I fried the FICM on the '07 in extreme cold but it was covered under warranty. I had been running a fuel pump on my 100 gal transfer tank without starting the truck. Low voltage and the FICM module do not go hand in hand.
Excluding my current '15 SuperDuty the '07 had been the most trouble-free truck I had owned, the '04 never experienced the horror stories that the 6.0 is known for. There was a wiring harness issue with chafing and solenoids needed replaced in the transmission, but were all covered under warranty, so there was no out of pocket expense in repairs.