I've really just received my new RAP unit from Drew Technologies. I'm giving it 5 stars for the concept and implementation of what can be a real time saver for our shop. Our techs, skilled as they are, often avoid the flash programming of ECMs because of the necessity to stand-by like an E.R. doctor over a delicate patient. The warnings that accompany the instructions make some techs very nervous. Some manufacturers do not communicate their methodology well. I usually do what flashes we perform, but my time is better spent running the shop. The DREW RAP (Remote Access Programmer) is shipped to you for a credit card charge of $29.95. It is a rental. If you perform 2 flashes per month, billed to the CC on file with Drew at $125 per flash, the rental is free for that month. Otherwise your card is billed $20 for 1 month rental. The unit comes in a nice case about the size of the old Snappy scan tool & accessories box. The case contains a wireless tablet PC, a flash interface device with a DLC cord and connector, a wall plug to power it up as well as battery post terminals for 12v operation. When you have a car to update through the flash process, you simply plug in the unit, connect it to the vehicle's DLC, hook up your battery charger to the vehicle...and call DREW. They take it from there. Your tech is free to do other things while they finish the update and call you back to confirm its success. I may post a review after a few re-flash operations for a personal evaluation.