It's an insurance policy for major repairs. You buy it and hope you don't need it, but when you don't need it you complain about the wasted expense of the premiums. But if you do need it, you are thankful you have it - usually.
But it is a very complex insurance policy, full of exceptions and loopholes that most of us don't begin to understand until we get a "Claim Denied".
Read the numerous other threads on this subject and make up your own mind.
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL