Not sure about the 906, specifically, but I have used a 908 several times. I think it's a great tool for the money, compared to the cost of a new Snap-On scanner. There are certain functions that it does better than Snappy, like Ford PATS, for example. I also noticed recently how the Autel had access to Ford VCT data PIDs, while the Snap-On had nothing. Much more Euro friendly, as well.
Some of the functional tests don't work perfectly, however. Tried using a Toyota A/F ratio test the other day, and the Autel won't allow graphing of data during the test :blink: