I had the regular Pilot Sport in the same size back in 2001.
Probably, the best tire I have ever had. From road noise down to sticky handling, they were a very, very solid all around ultra high performance dry weather tire. (They were good in rain too). I agree, the tread pattern was awesome!
However, I have snow in the winter and had issues! I didn't want to spend the money on snow tires. I think the PS All Seasons are supposed to be great.
My only issue was tread life. They didn't last very long. I know they are high performance, but I was still disapointed. Especially since they were a fortune to buy.
I replaced them with Sumitomo HTR+ Ultra High Performance All Season tires. $88 a piece!! I love them. It's been 15,000 miles and barely a sign of wear (rotated @ every 6000 miles). I got them because f their tread life. I have done 100 mph numerous times with zero issues. Excellent snow traction too! The best tire for the money.
You can view them here:
http://www.tirerack.com/tires/tires....reModel=HTR%2B