I have an 05 997S. No issues, except the Michelin Pilotsports are LOUD. I have Bridgestone's now and much better.
Some of the soft-touch surfaces have worn, but were replaced under warranty.
I have had no mechanical issues.
The one issue that I have found is that the undercarriage is covered with a plastic panel (aerodynamics), and the A/C condenser tents to built up moisture and not drain properly. In a humid environment (aka Florida) this can lead to a musty smell from the A/C.
I get about 19.6mph average gas mileage.
Accelerations and handling are great.
I have the sport pack (chrono, PSM), and you can feel the car lower, suspension tighten, and the back end push down when the wing comes up.
