Apple Care – highly recommended
Got problems with my iPhone 5: The battery collapsed at 25% state of charge. Entered www.apple.at and found the support side easily. Open a new support case and got a recall at the agreed time. Replacing the device was the offered solution.
Next day TNT delivered the device. After 2 hours work (backup/restore) the new iPhone was ready to do his job. An update of the iOS before the restore had to be done and some passwords had to be entered again.
One more day and TNT picked up the old iPhone.
Conclusio: Apple Care works fine – just not really cheap …