Well, my 08 is about 2 weeks old now with just under 2000kms on it and overall I really like this truck. However, what I don't like is that I am having the re-occurring MIL (check engine light caused by the P2000 code problem which is theorized to be O2 sensor triggered and once in a while I am having this annoying problem where the exhaust brake functions intermittently and will come in too hard when engaged in RPMs above 1600rpm and from 1600-1400rpm it seems to disappear and then comes on hard again below 1400rpm. After a bit of driving, especially harder driving it goes right back to normal where it is smooth, firm, and linear braking throughout the RPM band. I am waiting for the problem to either resolve itself further along in the engine break in time line, or aggravate and become more consistent before taking it in for warranty as when I tried to take it in, it ran fine for the DC tech