These tires transformed my grocery-getter tC into a worthy track machine. I drove my car to the limits on the tires that came on it, which were Goodyear Eagle RSA. Those are All-Season tires and they showed it in their grip levels. I canyon my car regularly to get to places around town, and the immediate improvement with these tires was staggering. My car now had the same traction my All-Seasons had in the dry, in rain with the Bridgestones. The dry traction on the Bridgestones is incredible. After they were installed, I also purchased drilled and slotted rotors with an aggressive brake pad to compliment the brakes, and took my car to Streets of Willow in Rosamond, CA. I was able to run successfully with Subaru STI's without falling behind on cornering, albeit my straight line speed lacked a huge amount of power.
Comfort wise, they are a definite improvement in smoothness on the regular road and even better on the highway. The noise levels are lower as well compared to the All-Seasons. I enjoy less banging and slamming over bumps with these tires and they do so without sacrificing traction and grip.
Treadwear however is the only thing that I see being the low point on these tires, but then again, I do a lot of driving(600 miles a week), and I purchased these UHP Summer Tires expecting to wear them out a tad sooner. I'm planning on rotation of these tires every 1.25-2k miles. And so far they still have 95% tread on the front axle and 100% on the rear.
Overall, these tires are an excellent replacement tire for any vehicle that sees moderate weather conditions. In the rain they give performance equal to a good quality All-Season without sacrificing the dry traction drivers of Summer Tires demand. A definite solid decision and I will certainly purchase these tires again. I highly recommend them to anyone considering them and all my friends like them too!