it varies on the city manager but it may be slightly informal and laxed. I went to 1 of their stores and met with the city manager. (usually you have to do a phone interview after applying online but in my case I had met the city manager at a career fair so it kinda acted as a 1st interview) He offered water, tea or coffee. (they expect you to be professionally dressed) was probably about 30-45 mins. STarts of with tell me about yourself.
Once you pass the first interview you will be sent on a "store visit" which is another interview but this time it will be with a store manager ( this one unless you very much mess up such as vulgar manners, or acted i an inappropriate manner usually you will go for the final interview which for the most part will be with the district manager. Even that is a given because due to constant turnovers and shortstaffing they always are looking for MT well in metro areas that is.