I have had this scan tool since 2009 and I am very happy with it. It is very helpful with BMW , Mercedes, domestic and Asian. It is weak with Nissan and Volvo but as we know one tool can't have it all. I have been able to bail out other shops that have snap-on scan tools frequently. The new wifi is great also. I feel it is the best bang for your buck for the small shop owner like myself. Since it is laptop based it does not become obsolete and non updatable.
(iATN Note: At the time of review, this product was titled "ScanTool by AutoEnginuity").