Yes I have. Keep in mind I work on 6.0 and 6.4 Powerstrokes in my shop regularly. They aren't more of a bastard than those. I have worked on quite a few TDI cars for people as well.
I drove it and loved it. Kinda debating on waiting for the Q5 TDI quattro that they are getting in July. I won't let her get a Ford, Chevy, or Dodge SUV. The quality isn't there.
A few others and myself disagree with that statement. Even though I'm a domestic guy it was a good show. Lots of cool cars. Got to catch up with some good friends I haven't seen in a while.