Going from stock RFT to the PSS's completely transforms the car. While the tires are not yet broken in, and I haven't driven in the rain yet, the dry performance is sharp, responsive and grippy when it counts.
The character of the tire is very much affected by tire pressure. The dealer installed them with psi's just below what's listed on the doorsill. They were nice and a touch cushy. But after increasing the pressure just 2-3 psi, the car handles much better.
No regrets at 250 mile in.