In the three years I've owned my MacBook, it's had 3 major issues. It had to be sent to Apple Care twice and for the third time, I went to the Apple Store and asked for a replaecment. All were within warranty. For the first time, there were absolutely no questions or doubts from the person I spoke with, and it was fixed and sent overnight in both ways, the total turnaround time from me shipping it out to receiving it back was three days. The second time, I had to argue with the person on the phone, who, in my opinion, was kind of a jerk. But eventually I got him to have my computer repaired, and i got overnight shipping both ways. The third time, I went into the Apple Store, and talked my way into a replacement. After the replacement, I've had no problems.