For the second time, Fender has replaced a neck for me at their cost. The first was a Tele with a maxed out truss rod adjustment. This time the blame was mine, on my Strat. I stripped out the truss rod nut, which on a Fender is a pain, you can't get to the nut without drilling out the plug at the head. But there were some questionable issues about the neck, so they agreed to just replace the neck at their cost. I bought the guitar 3 years ago.
Fender is pretty good about supporting the product, at least on their American product. I have heard they are not as good on the cheaper lines, but you get what you pay for. I promised them never to adjust the truss rod again on one of my fenders.