Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: It will definitely seal up your system
Review: Our company mechanic used this on the company car that had no AC. Worked for about 2 days. We had him fix it the right way afterwards which cost a little under $1000. He found that it had sealed up major components of the system which could only be fixed with a complete replacement of major AC system components.
