The warranty extension is in reality an insurance ERGO with a single premium payment, then the repairs are paid, if the device should go in the 2 years after warranty end broken. Be paid only natural damage that would be recognized in the case of warranty (no theft, external damage, personal negligence). That's the theory. Whether it really easily and efficiently work ("just call"), you can only judge to guarantee the end event of a claim. I'm rather skeptical, but the low price has induced me to try it. Note: The mail confirming multiple secure! This means that print plus save! It is the only confirmation that the warranty extension insurance was taken out. I also recommend necessarily to put a copy of the instruction manual! Who knows after 3 to 4 years from now, that such insurance has been taken when buying?