I have had them on my truck for almost 6 months. I 100% recommend them. There are MANY advantages: Weight savings, less rolling resistance, improved fuel mileage, less tires to check the air on, better traction in snow and a MUCH smoother ride. They are a little scary bobtailing in the rain on my truck.
If you are running them on your trailer as well, you can have your virgin drives capped and run them on your trailer. The caps cost about 35 to 40% what a virgin does.
What if you get a blowout? We all know you are not suppose to drive with a blown dual, but we "limp" in with it. Michelin will pay the service call if you can't get a service to you in less than 2 hours. All you have to do is call 1-800-tire-911.
Check out the "blowout" videos at: Michelin Americas Truck Tires Videos and Demos Page Very impressive
I just purchased my second truck and can't wait to get them installed. I will wait till I wear out the duals that are on it though.
Good luck,
scott