I replaced the OEM Nexen tires at 52k with a set of Pirelli Cinturato P7 All Season Plus tires back in May. I've had them for about 7k miles and I agree with the comments, they are very good tires. I have not tried them on snow or ice yet but I expect them to perform better than the Nexen's. There was also a $60 rebate on a set of four tires, which I used to help off-set the cost of getting the wheels balanced correctly (see below)
Right after the install I had some vibration in the steering wheel at high speeds but found out the wheels were not balanced correctly by the installer (even though they were using a Hunter balancer w/ RF). They re-balanced 3 times until I realized they either didn't know what they were doing or just didn't want to take the time to do a good job. I took my car to a more reputable wheel dealer using the same Hunter balancer w/ RF and no more vibration (was told prior shop placed the wheel weights in the wrong location).