I have a set of the Cooper's on my '07 Camry with about 30k miles on them. So far they have been great, no problems to speak of.
In the past, all I would buy was goodyear (aka badyear) tires. The set before the Coopers were nothing but trouble. In 20k miles I had a blowout, 5 flats, and various anomalies like the car wondering all over the road at normal driving speeds. I got fed up with goodyear, fearing for the safety of my family, and replaced them with Cooper tires. At this point, because of the goodyear tires and the treatment I received from goodyear, I will NEVER buy goodyear again!
At this point, though, I am not completely sold on Cooper. I might try Michelins next time.