One of the great unanswerable questions.Do you think it's worth it?
If you plan to keep your car for four or five years and something goes wrong that would have cost you more than the cost of the warranty then yes.
If you plan to keep your car for four or five years and nothing goes wrong then no.
Would you rather have it and not need it, or need it and not have it? The answer to that question tells you if it's worth it or not...