I've got close to 5k miles on them, and they're wearing pretty well. Not even 25% gone yet.
I autocross on them, so they look like a burn victim right now, but that's just my abuse. The first 2000 miles wore nice and even, and they're starting to soothe out again.
These tires are kind noisy, I thought they would quiet after a bit, but they're still a little louder than normal street tires. They do make a cool noise when stopping though.
If anyone has any specific questions, I'll do my best to answer them. Hopefully I'll get some serious miles on them before I take them off for winter.