I got in on the Buy 2-Get 2 special they were running. When I called, the district manager helped me and was awesome to talk to. When I went to the store, their store manager was great as well. I explained that I didn't want the cheap tires, but I wasn't looking for the expensive one either. Everyone was helpful, my tires were done (a little longer wait time than quoted...but still).
I really like their warranty system- 3 years and roadside assistance. The dealership had quoted me an obscene price- Big O was a thousand times better for great tires.