I'm not one to usually leave negative reviews, but I feel compelled to do so on this particular shop. I had an issue with a front tire that was "chunking" which could be caused by a number of things. I took it to Group One and they came back with $4000 estimate (crack in the control arm). I took it for a second opinion to another shop and they suggested (without charging me a dime) to just get the alignment fixed and see if that resolved the issue (which it did). The other shop also noted the crack in the control arm, but they also said that it was not a major issue and was definitely not the cause of the tire chunking. The other shop essentially saved me $3900 and didn't make a penny for their efforts. But, that other shop gained a new customer (and obviously Group One lost me forever). I don't mind a little bit of uncertainty, but to charge someone almost $4000 for something they should know is not the cause of the problem is inexcusable.