These replaced the OEM Goodyear runflats, and what an improvement they are. The first thing I noticed was that they definitely have a softer sidewall than the runflats and feel more squishy. These tires give a great ride and are extremely quiet. Dry traction is really good. Wet traction is sufficient too, as my Vette is my dd. You don't have to worry about hydroplaning should you get caught in the rain.
I've got 18k miles on my set, and it looks like I should be able to get 25k on them (well, at least the rears. I could probably get 40k miles out of the fronts.) Not too shabby for a 280 treadwear rating. These tires are a FANTASTIC bang for the buck, and the tread pattern looks so aggressive. I highly recommend these tires and I will get them again. Can't beat em for the price.