Excellent. Very fast and efficient (they usually get you in and out in about 30 minutes - though sometimes it's a longer wait because of the volume of customers).
Because they only do tires, they do it well, and do it properly (right tools, right process).
They have very competitive prices and usually offers several tire choices to suit you.
I believe they occasionally carry house brands that are similarly rated/warranteed, but are significantly lower priced.
Given their good prices and speed, I stopped bothering to go to Costco for tires.
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