Many poeple are asking which OBD2 interface is the best?
Unfortunately, there is no simple answer to this question. The manufacturer tools have the most features for their specific makes, but are expensive and not very flexible. Aftermarket tools specific to a vehicle can come pretty close to the same features, with a much better price, but still run very proprietary software and aren't universal. Standalone tools are usually easier to work with, but have limited user interfaces and aren't very flexible. We personally like the flexibility of the PC/PDA converters, but they have their downsides as well. It is kind of like asking which vehicle is best, it would depend largely on function (hauling children, groceries, gravel, or just plain hauling a-- ?)