Geoff,

I don't blame you for being concerned that whatever you purchase should be top quality. No-one really enjoys having problems. But just because people are posting their issue's here doesn't mean Porsche have less effective quality control than any other manufacturer. Hell, even NASA send stuff up that they think is right.

The reality is that any complicated assembly be it a car, a plane, a building, a smart phone or something that Microsoft wrote is bound to have some bugs in it. For me the big issue is:
1) how serious are the bugs; and
2) how does the vendor go about fixing them.

I think Porsche have a very good record on this and that's why I put down my money. If you go to another enthusiast site especially one where people fully explore a product's capabilities (ie push the envelope) I think you'll see the same pattern.

Good luck with whatever you decide to get.