Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Con job saver
Review: You can check for any emission problems before going to the inspection station and save the $95 per hour they charge if any show up. Most are minor and easily fixed or covered under warranty which they wont tell you. One "check engine" signal solved and you have covered the cost of the scanner.This one is exceptionly easy to use.
