Hands down one of the most useful tools I've ever owned. This machine seems to be misunderstood so make sure it is the right tool for you but If you do a lot of bench work it's a must. This has never failed to do what i need it to do. I try my other equipment, hit a wall so i get the multiprog and it does the job every time. It's not a primary BCM Cloning tool, yet it can clone many BCM Easily. Any eeprom work it truly does excel. See it as a chip programmer but great at ECU Cloning. Don't treat it as a remapping tool although it can in many cases. You won't be disappointed