If you happen to live somewhere that is warm and sunny, the P Zeros will offer you excellent traction and a smooth ride. If you live somewhere that snows, your Crossfire will become a sled. Granted, most rear wheel drive vehicles aren't designed for snowy climates, but I was horrified at how poorly the P Zeros handled in winter (to the point where I couldn't even get enough traction to get out of my driveway). I replaced them with Michelins, mostly because that's what Town Fair Tire had in stock, and I had read favorable reviews on this site.

Since replacing the Pirellis with Michelins, I brought my car in for a $500 alignment, which will hopefully increase the life of my Michelins. My car was a bit out of alignment, but I'd still be very hesitant to buy another set of Pirellis, mostly because I expect a little more than 16,000 miles out of a $350 tire.