As for what it covers, you have to look at the literature for the policy you are buying and ensure that it is one that covers those things you want to be covered.
With the snowballing level of complexity in cars anymore, the extra 2 years in the service agreement at least gives time for the aftermarket to catch up.
Right... All this will seem to be a reflash for the tranny software, and valve bodies being defective or wrong diameter bore put in from the factory on one of the chambers for the valve body.. all in all yes I'm purchasing the vehicle especially now that I know that I still have two years left on the powertrain which is the only thing I'm really worried about everything else I'm not worried.