No big issues so far. Only had an alternator bearing go under warranty. If dealer service departments were competent that would have been an easy fix. I wish I could buy a car for a couple thousand less without a warranty. It has had a stage 2 turbo on it for 20k and a few track events. My only issues have been related to heat from the turbo. Certainly not fords issue.
08 SE sedan FS stage2 turbo
05 Boxster S (stock so far)