I put a set of Cooper AT3's on my Suburban. It's a 2004 Z71 w/17" tires. I've been a fan of Cooper's for awhile.
My wife primarily drives this rig but I've gotten some time behind the wheel and I wanted to pass on what I've found.
The tires are extraordinarily quiet.
Have great traction on dry, wet and snow. I've driven them in fresh 10" snow with absolutely no problems.
They look good and I haven't seen them pick up a lot of rock. I live on a rock lane and normally pour 3/4 or 1.5" white rock so that's nice.
Good ride, good stability, good stance. In my hwy miles I've gotten 17-19 mpg, pretty much what I always have gotten at 60-64 mph.
I really like their looks. I've had a fair number of guys ask me if I like them, they just have a unique look to them.
Mine were $950 installed. I did not get 10 ply as I don't use it as a primary tower anymore.
Time will tell on miles and so on. But at least I went US and I'm fairly certain I got a superior product.