Worked out of the box. Fast. Good documentation. The free app provided by scantool.net--OBDLink--looks great and is easy to use. Torque Pro works very well.
Now I know exactly the idle RPMs after cleaning the air-intake throttle body and doing the idle reset and relearn procedure. Now I can investigate the health of the air-fuel and O2 sensors before they fail.
This product is serviced from the USA. The company provides firmware updates. There is on-line support. Well worth the extra coin.