Anyone have experience with this product? Standalone knock monitor, which can use either factory knock sensor or generic bosch sensor.

Thinking for the money it might be a good investment.

 

I have one, but have yet to install it, I bought a sensor for a BMW and put spade connectors on it, and made a mount simmilar to the one FM uses for the link's bosch knock sensor (by welding a small nut to the head of a large bolt).