I visited this location on September 30 to have lunch. I was wearing a jacket with the logo of the University of Michigan (my alma mater) on it. When I approached the counter, the manager instructed his employee to "charge him an extra 10% for being a Michigan fan".
When I stated that I would be happy to spend my money elsewhere, the manager replied, "Yeah, you can take it right back to Michigan."
I have never experienced such rude and unprofessional customer service in my life, nor have I ever seen a manager--in any industry--exercise blatant contempt for a guest. I reported this incident to Corporate, and posted on the store's Facebook page to bring this to the attention of the general manager.
Otherwise, the staff is usually friendly and helpful (sometimes overly so). But I will not be returning to this location. There are just too many other places that are happy to accept my money.