First of all, the tread life of these tires is not very good. If you are buying these to drive on daily, you (other than just wasting them) are more or less wasting your money, they aren't really meant for that. I'm roughly 40% through the life of the tire after 3500 miles of combined city/highway, three track days and one autocross event. These are incredibly good in dry weather. The turn in is fantastic, and you can confidently hold your line no matter what. They do tend to get a bit greasy in temps of the upper 90's after some hot laps, but even as they fade your lines remain strong and you never feel out of control. It's a tire that's doing incredibly well in autocross, and makes an excellent track day tire, but again, if you are looking for a street tire, I would probably look elsewhere. Also note, if you are unfamiliar with soft compound tires, these things pick up EVERYTHING. Any sand or gravel on the road, you will hear it. I actually broke my friends windshield a few weeks ago, as he was driving behind me and complained that I was constantly throwing rocks at him.
Overall, will definitely be purchasing another set. A truly excellent performance-only tire.