I have America's Tire Co. do my tires, they do a great job. It's all in the managment. At the one next door to my work, they are very very compatent. They've patched my tires three times for free. The first time they did it, I hadn't even bought the tires from them. One of the guys that works there noticed a nail in my tire as he was going out back to drop used tires out in the shed, and they fixed it for free. But as with most chain stores, 99% of the managers got there because they cater to their superiors, not their customers.