Autel is by far the best value for a diagnostic tool. Snapon and Bluepoint are well behind the curve in delivering new tests. I was once a repair technician for the Heavy Duty Truck division of snapon diagnostics and I was always surprised by feats of amateurism that pervaded the company. For the prices charged to auto technicians, the company does not reinvest ANY of the profits into development. Much of the software is purchased from third party developers. The senior level software engineers are constantly moving thrrough to better positions elsewhere, leaving the Juniors to deal with maintenance coding and implementing bug fixes with their rolling release. Validation that is supposed to take place before release was often ignored and pushed to end users full of bugs. I can't count the number of control modules bricked by hurried release candidate versions.
The actual facility is miniscule in size, and in poor condition. The biggest trick they play is fudging numbers to make the executives happy, so that the share price increases and the show runners can go home with big bonuses at the expense of continuous improvement efforts.
The validation engineers were absolutely Blown away by the capabilities of the Autel devices when they were initially released. Some of the engineers remarked that autel was stealing manufacturer proprietary secrets in order to make theirs a competent product. I never bought into that theory. I think Autel is just a well funded, narrow focused company staffed by capable and energetic development teams, talented UI designers, and obviously Executives who understand that good business is Keeping the customers you already have, not dumping buggy garbage on the trucks for the marketing wank to brag about.