I think the tires are good. Cooper is a good name that I trust, but I have never driven with many other tires before, and no others on the explorer. These tires were on it when I recieved it. They are probably the same ride and feel as the Goodyear equivalent of these that usually came stock on latter 2nd generation explorers. I'm not sure if you've ever driven with those, but I was hoping to give you an idea of their fide.
I'd agree that they are less aggressive and can be used on light offroad trails, but I don't view them as summer tires. They are sufficient enough for winter use on the snow with some ice. I really wouldn't recommend much more than that. You can try but I'd expect you to have to do some digging. I hope that answers your questions.
-Marc