Choose your answer: is the following review positive or negative?

My story is complicated, but I'll spare you the excruciating details. The basics: *Customer service was initially rocky. We exchanged a couple of phone calls, haggling about warranties and a competitor's tire price. *I finally had to call the customer relations chief at headquarters in North Scottsdale. The results: * Everything was resolved to my satisfaction * I got a new set of tires * I'm now a fan of Discount Tire. What you can learn from this: * Look at that fine print that came with the last set of tires you bought and are now replacing. Figure out whether they gave you fewer miles than they were warranted to give you. If so, you have a credit coming. MAKE SURE YOU DO THIS -- my salesman was going to ignore this part, until I pointed it out to him. In my case, this was worth about $300. * Identify the tires you want and research the price. You can almost always find them cheaper, and Discount Tires pledges it will not be undersold. (though you may have to push a bit to get them to honor that pledge.)

Options: (a). negative. (b). positive.
(b).