I bought it and put it to use yesterday. I had to replace the two forward O2 sensors on my wife's Toyota Sequoia (PITA BTW) and used it to clear the codes. Then I took it for a test drive and played with the guages function, which is pretty cool. It will monitor up to 10 functions in real-time. I also played with the 0-60 function and found I could get 8. 6 seconds out of that beast.