So far I have had good success with BMW.
So far all BMW’s supported auto vin & autoscan, was able to get a quick easy accurate report of issues.
2006 BMW X3:
Was able to find 2 misfires because of bad plugs.
2009 BMW z4:
Was able to diagnose and find bad HAL sensors stopping the roof from retracting
Not to many test subjects yet, auto vin did not work, had to manually pick the truck
2002 F250 XLT:
After manually picking the truck the autoscan worked. This truck doesn’t have to many systems but I was able to see all appropriate data, clear warnings etc.
Chevy / GM:
Having a little bit of an issue here.
Testing on a 2012 Avalanche LTZ
Autovin did not work, I had to pick the truck manually.
Ran an autoscan and a bunch or fault codes did show up from the scan. However none of the codes appeared to be correct. I was not expecting to get any codes on this truck. It was telling me things like the driver door window switch was faulty, but it definitely works. From there when I tried to display and or clear the code the scanner froze. I let it sit for 10 mins nothing happened. I had to power it off. Going back in I manually selected just the device that was throwing codes, however when scanning it directly nothing was detected. When I did an autoscan again the same codes appeared, and again the device froze making it a brick.