I bit the bullet and got the Continental ExtremeContact DWS. They are quiet, very grippy, and they handle comparably or better than the pirelli pzero neros that came stock.
I don't need winter tires, I live in Florida. I just bought the DWS because they were cheaper and were going to last longer than the true summer tires.
I had to replace my stock P-Zero Neros and went with DWS. So far, I am pretty pleased with them and have 1 issue and 1 minor issue over the course of 1500 miles:
1. aesthetically, they dont look as good as P-Zeros. I don't like the big Continental branding on the tire. They also seem to look like more of a rounded sidewall compared to P-Zero looks flatter.
2. the DWS seems a bit noisier to me. Not as quiet as P-Zeros. But I'm not sure if that's because I was involved in a small car accident and maybe I lost some sound quality in the interior of the cabin. I still need to test drive a 2011 and compare the interior cabin noise.
Overall, I like the DWS for the reviews and the cost. Plus, I've read that its a great all-season tire.
Good luck!