Even on our old unit I had the ESP plan. I got it from Good Sams and on the new unit a 2013 we purchased at the dealer we got the extended warranty for an extra 7 years. We've had numerous repairs done and have only paid for one and that was MY fault because I turned to sharp in a gas station and caught a steel pipe filled with concrete!
That was my error and I paid for it. The insurance covered most of it but I still had the deductible to pay. We won't live without ESP even though I do some of the repairs and etc myself but IF anything big go out it is covered by the ESP plan.