Recently got these for my RX-8 R3 in the stock size (225/40/19). I am blown away. EXCELLENT combination of grip, handling, and low NVH.
We shall see about treadwear -- I'm sure it'll be nowhere near what a lot of people on this forum get out of the tires they buy, but as far as I know there's nothing comparable that will last as long.
Another perk is that this is one of the lightest tires I could get. It's 3 lbs per corner lighter than the stock Bridgestone Potenza RE050A, which is really nice.
If there's anything bad to say, it's that there's arguably too much grip at the rear axle now. The car came to me with worn stock tires, and the handling balance was adjustable with the throttle even at semi-normal speeds. It was utterly intoxicating. To get the same effect with the Pilot Super Sport, I'd have to be pushing WAY harder than I feel like pushing on public roads. Bummer. I'm half-tempted to stick with Pilot Super Sports in front and get Pilot Sport A/S 3s in the rear next time...
IMO, though, the ability to stop and swerve (especially on wet roads) trump everything for a street tire, so I'm happy with my purchase overall.
As an aside, the fact that the car has this much grip with 225-section tires all around is astounding.