Yes John Y, I have PASM on my current S with 19s. I don't auto-x the car but frequently drive on the street as if competing in an auto-x

.
I'll let you in on a little secret. The base 987 with 17s is just as fun to drive as the S with 19s and the handling feels just as good if not better. I say feels better because it feels lighter and more tossable. Is it going to turn in a faster auto-x time? No, but that's not down to the handling factor.
Do I notice a difference with PASM? Yes, the car definitely hunkers down and there's also a slightly different response in the throttle (this is without Sports Chrono) that doesn't get mentioned much. Could I in good faith recommend PASM to a 987 buyer? No, because I don't think it provides a $2000 premium to the handling characteristics of the stock suspension.
You may also want to check out the updated Porsche configurator. It's been mucho-modified.
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05 987 5-speed - Sold
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