I went with the PPC BSr unit. I am very happy with this scanner and thought it was money well spent.
It pulled a throttle code error and I knew that the dealer would have to replace the throttle at their expense. Without this unit, I never would have known about this potential issue as the CEL never lit.
It also reset the SRS error with the touch of a button.
I bought mine off of EBay and with a discounted price after using "Live Search' which gave me a 20% discount. Depending on the season the discount ranges from 3% to 20%.
Good luck on your decision