I came from the factory Dunlop Super Sports, which were plenty grippy for the street but just weren't cutting it at Autocross. So I upgraded to the RE-11A, which has been a big improvement. I feel like wet traction is actually not quite as good as the Dunlops were, but other than that, these tires are a big improvement. My times have improved, the cabin is quieter at all speeds, even my gas mileage has improved. I would recommend these to anyone looking for a good compromise between daily driving comfort and competitive performance, when you want to drive to an event on the same tires you're competing on, or you're in a stock class and have to maintain 200+ treadwear rating. The sidewalls are nice and stiff, letting me cut tire pressures by a good 5 PSI, and they don't seem to take as much of a beating from events as the Dunlops did. All around very happy with these tires.